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-<title>HPSF Internals</title>
+<title>HPSF Internals: The Horrible Property Set Format</title>
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+<br>
+<font size="+1" color="#000000">HPSF</font><font size="-1">
+<ul>
+<li>
+<a href="index.html"><font size="-1">Overview</font></a>
+</li>
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+<li>
+<a href="todo.html"><font size="-1">To Do</font></a>
+</li>
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-<title>HPSF Internals</title>
+<title>HPSF Internals: The Horrible Property Set Format</title>
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<table width="80%">
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<td bgcolor="#F3DD61"><font face="Arial,sans-serif" size="+1">
<center>
-<b>HPSF Internals</b>
+<b>HPSF Internals: The Horrible Property Set Format</b>
</center>
</font></td>
</tr>
<tr>
<td>
<br>
+
+
+<div align="right">
+<table cellspacing="0" cellpadding="2" border="0" width="99%">
+<tr>
+<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>Introduction</b></font></font></td>
+</tr>
+<tr>
+<td>
+<br>
+
+
+<p align="justify">A Microsoft Office document is internally organized like a filesystem
+ with directory and files. Microsoft calls these files
+ <em>streams</em>. A document can have properties attached to it,
+ like author, title, number of words etc. These metadata are not stored in
+ the main stream of, say, a Word document, but instead in a dedicated
+ stream with a special format. Usually this stream's name is
+ <code>\005SummaryInformation</code>, where <code>\005</code> represents
+ the character with a decimal value of 5.</p>
+
+
+<p align="justify">A single piece of information in the stream is called a
+ <em>property</em>, for example the document title. Each property
+ has an integral <em>ID</em> (e.g. 2 for title), a
+ <em>type</em> (telling that the title is a string of bytes) and a
+ <em>value</em> (what this is should be obvious). A stream
+ containing properties is called a
+ <em>property set stream</em>.</p>
+
+
+<p align="justify">This document describes the internal structure of a property set stream,
+ i.e. the <em>Horrible Property Set Format (HDF)</em>. It does not
+ describe how a Microsoft Office document is organized internally and how
+ to retrieve a stream from it. See the <a href="../POIFS/index.html">POIFS documentation</a> for
+ that kind of stuff.</p>
+
+
+<p align="justify">The Horrible Property Set Format is not only used in the Summary
+ Information stream in the top-level document of a Microsoft Office
+ document. Often there is also a property set stream named
+ <code>\005DocumentSummaryInformation</code> with additional properties.
+ Embedded documents may have their own property set streams. You cannot
+ tell by a stream's name whether it is a property set stream or not.
+ Instead you have to open the stream and look at its bytes.</p>
+
+</td>
+</tr>
+</table>
+</div>
+<br>
+
+
+
+
+<div align="right">
+<table cellspacing="0" cellpadding="2" border="0" width="99%">
+<tr>
+<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>Data Types</b></font></font></td>
+</tr>
+<tr>
+<td>
+<br>
+
+
+<p align="justify">Before delving into the details of the property set stream format we
+ have to have a short look at data types. Integral values are stored in the
+ so-called <em>little endian</em> format. In this format the bytes
+ that make out an integral value are stored in the "wrong" order. For
+ example, the decimal value 4660 is 0x1234 in the hexadecimal notation. If
+ you think this should be represented by a byte 0x12 followed by another
+ byte 0x34, you are right. This is called the <em>big endian</em>
+ format. In the little endian format, however, this order is reversed and
+ the low-value byte comes first: 0x3412.
+ </p>
+
+
+<p align="justify">The following table gives an overview about some important data
+ types:</p>
+
+
+<table width="100%" cellspacing="2" cellpadding="2" border="0">
+<tr>
+
+<td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Name</p>
+
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Length</p>
+
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Example (Little Endian)</p>
+
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Example (Big Endian)</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<em>Bytes</em>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">1 byte</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<code>0x12</code>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<code>0x12</code>
+</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<em>Word</em>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">2 bytes</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<code>0x1234</code>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<code>0x3412</code>
+</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<em>DWord</em>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">4 bytes</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<code>0x12345678</code>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<code>0x78563412</code>
+</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">
+<em>ClassID</em>
+</p>
+
+<p align="justify">A sequence of one DWord, two Words and eight Bytes</p>
+
+</font></td>
+
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">16 bytes</p>
+
+</font></td>
+
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">
+<code>0xE0859FF2F94F6810AB9108002B27B3D9</code> resp.
+ <code>E0859FF2-F94F-6810-AB-91-08-00-2B-27-B3-D9</code>
+</p>
+
+</font></td>
+
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">
+<code>0xF29F85E04FF91068AB9108002B27B3D9</code> resp.
+ <code>F29F85E0-4FF9-1068-AB-91-08-00-2B-27-B3-D9</code>
+</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000"></font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000"></font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">The ClassID examples are given here in two different notations. The
+ second notation without the "0x" at the beginning and with dashes
+ inside shows the internal grouping into one DWord, two Words and eight
+ Bytes.</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">
+<em>Watch out:</em> Microsoft documentation and tools show class IDs
+ a little bit differently like
+ <code>F29F85E0-4FF9-1068-AB91-08002B27B3D9</code>.
+ However, that representation is (intentionally?) misleading with
+ respect to endianess.</p>
+
+</font></td>
+
+</tr>
+</table>
+
+</td>
+</tr>
+</table>
+</div>
+<br>
+
+
+
+
+<div align="right">
+<table cellspacing="0" cellpadding="2" border="0" width="99%">
+<tr>
+<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>HPSF Overview</b></font></font></td>
+</tr>
+<tr>
+<td>
+<br>
+
+
+<p align="justify">A property set stream consists of three main parts:</p>
+
+
+<ol>
+
+<li>
+
+<p align="justify">The <em>header</em> and</p>
+
+</li>
+
+<li>
+
+<p align="justify">the <em>section(s)</em> containing the properties.</p>
+
+</li>
+
+</ol>
+
+</td>
+</tr>
+</table>
+</div>
+<br>
+
+
+
+
+<div align="right">
+<table cellspacing="0" cellpadding="2" border="0" width="99%">
+<tr>
+<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>The Header</b></font></font></td>
+</tr>
+<tr>
+<td>
+<br>
+
+
+<p align="justify">The first bytes in a property set stream is the <em>header</em>.
+ It has a fixed length and looks like this:</p>
+
+
+<table width="100%" cellspacing="2" cellpadding="2" border="0">
+<tr>
+
+<td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Offset</p>
+
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Type</p>
+
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Contents</p>
+
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Remarks</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">0</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Word</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<code>0xFFFE</code>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">If the first four bytes of a stream do not contain these values, the
+ stream is not a property set stream.</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">2</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Word</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<code>0x0000</code>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000"></font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">4</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">DWord</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Denotes the operating system and the OS version under which this
+ stream was created. The operating system ID is in the DWord's higher
+ word (after little endian decoding): <code>0x0000</code> for Win16,
+ <code>0x0001</code> for Macintosh and <code>0x0002</code> for Win32 - that's
+ all. The reader is most likely aware of the fact that there are some
+ more operating systems. However, Microsoft does not seem to know.</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000"></font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">8</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">ClassID</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<code>0x00000000000000000000000000000000</code>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Most property set streams have this value but this is not
+ required.</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">24</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">DWord</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">
+<code>0x01000000</code> or greater</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Section count. This field's value should be equal to 1 or greater.
+ Microsoft claims that this is a "reserved" field, but it seems to tell
+ how many sections (see below) are following in the stream. This would
+ really make sense because otherwise you could not know where and how
+ far you should read section data.</p>
+
+</font></td>
+
+</tr>
+</table>
+
+</td>
+</tr>
+</table>
+</div>
+<br>
+
+
+
+
+<div align="right">
+<table cellspacing="0" cellpadding="2" border="0" width="99%">
+<tr>
+<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>Section List</b></font></font></td>
+</tr>
+<tr>
+<td>
+<br>
+
+
+<p align="justify">Following the header is the section list. This is an array of pairs each
+ consisting of a section format ID and an offset. This array has as many
+ pairs of ClassID and and DWord fields as the section count field in the
+ header says. The Summary Information stream contains a single section, the
+ Document Summary Information stream contains two.</p>
+
+
+<table width="100%" cellspacing="2" cellpadding="2" border="0">
+<tr>
+
+<td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Type</p>
+
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Contents</p>
+
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Remarks</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">ClassID</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Section format ID</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">
+<code>0xF29F85E04FF91068AB9108002B27B3D9</code> for the single section
+ in the Summary Information stream.</p>
+
+
+<p align="justify">
+<code>0xD5CDD5022E9C101B939708002B2CF9AE</code> for the first
+ section in the Document Summary Information stream.</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">DWord</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Offset</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">The number of bytes between the beginning of the stream and the
+ beginning of the section within the stream.</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">ClassID</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Section format ID</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">...</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">DWord</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Offset</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">...</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">...</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">...</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">...</p>
+
+</font></td>
-<p align="justify">TODO: This documentation is still to be written. For the
- time being, please see <a href="http://www.rainer-klute.de/~klute/Software/poibrowser/doc/HPSF-Description.html">http://www.rainer-klute.de/~klute/Software/poibrowser/doc/HPSF-Description.html</a>.</p>
+</tr>
+</table>
+
+</td>
+</tr>
+</table>
+</div>
+<br>
+
+
+
+
+<div align="right">
+<table cellspacing="0" cellpadding="2" border="0" width="99%">
+<tr>
+<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>Section</b></font></font></td>
+</tr>
+<tr>
+<td>
+<br>
+
+
+<p align="justify">A section is divided into three parts: the section header (with the
+ section length and the number of properties in the section), the
+ properties list (with type and offset of each property), and the
+ properties themselves. Here are the details:</p>
+
+<table width="100%" cellspacing="2" cellpadding="2" border="0">
+<tr>
+
+<td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify"> </p>
+
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Type</p>
+
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Contents</p>
+
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+
+<p align="justify">Remarks</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Section header</p>
+
+</font></td>
+
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">DWord</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Length</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">The length of the section in bytes.</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000"></font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">DWord</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Property count</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">The number of properties in the section.</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Properties list</p>
+
+</font></td>
+
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">DWord</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Property ID</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">The property ID tells what the property means. For example, an ID of
+ <code>0x0002</code> in the Summary Information stands for the document's
+ title. See the <a href="#property_ids">Property IDs</a>
+ chapter below for more details.</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000"></font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">DWord</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Offset</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">The number of bytes between the beginning of the section and the
+ property.</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000"></font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">...</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">...</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">...</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Properties</p>
+
+</font></td>
+
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">DWord</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Property type ("variant")</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">This is the property's data type, e.g. an integer value, a byte
+ string or a Unicode string. See the
+ <a href="#property_types"><em>Property Types</em></a> chapter for
+ details!</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000"></font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<em>Field length depends on the property type
+ ("variant")</em>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">Property value</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">This field's length depends on the property's type. These are the
+ bytes that make out the DWord, the byte string or some other data of
+ fixed or variable length.</p>
+
+
+<p align="justify">The property value's length is always stored in an area which is a
+ multiple of 4 in length. If the property is shorter, e.g. a byte
+ string of 13 bytes, the remaining bytes are padded with <code>0x00</code>
+ bytes.</p>
+
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000"></font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">...</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">...</p>
+
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+
+<p align="justify">...</p>
+
+</font></td>
+
+</tr>
+</table>
+
+</td>
+</tr>
+</table>
+</div>
+<br>
+
+
+
+
+<div align="right">
+<table cellspacing="0" cellpadding="2" border="0" width="99%">
+<tr>
+<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>Property IDs</b></font></font></td>
+</tr>
+<tr>
+<td>
+<br>
+
+<anchor id="property_ids"></anchor>
+
+
+<p align="justify">As seen above, a section holds a property list: an array with property
+ IDs and offsets. The property ID gives each property a meaning. For
+ example, in the Summary Information stream the property ID 2 says that
+ this property is the document's title.</p>
+
+
+<p align="justify">If you want to know a property ID's meaning, it is not sufficient to
+ know the ID itself. You must also know the
+ <em>section format ID</em>. For example, in the Document Summary
+ Information stream the property ID 2 means not the document's title but
+ its category. Due to Microsoft's infinite wisdom the section format ID is
+ not part of the section. Thus if you have only a section without the
+ stream it is in, you cannot make any sense of the properties because you
+ do not know what they mean.</p>
+
+
+<p align="justify">So each section format ID has its own name space of property IDs.
+ Microsoft defined some "well-known" property IDs for the Summary
+ Information and the Document Summary Information streams. You can extend
+ them by your own additional IDs. This will be described below.</p>
+
+
+<div align="right">
+<table cellspacing="0" cellpadding="2" border="0" width="98%">
+<tr>
+<td bgcolor="#525D76"><font color="#ffffff" size="-1"><font face="Arial,sans-serif"><b>Property IDs in The Summary Information Stream</b></font></font></td>
+</tr>
+<tr>
+<td>
+<br>
+
+
+<p align="justify">The Summary Information stream has a single section with a section
+ format ID of <code>0xF29F85E04FF91068AB9108002B27B3D9</code>. The following
+ table defines the meaning of its property IDs. Each row associates a
+ property ID with a <em>name</em> and an <em>ID string</em>. (The property
+ <em>type</em> is just for informational purposes given here. As we have
+ seen above, the type is always given along with the value.)</p>
+
+
+<p align="justify">The property <em>name</em> is a readable string which could be
+ displayed to the user. However, this string is useful only for users who
+ understand English. The property name does not help with other
+ languages.</p>
+
+
+<p align="justify">The property <em>ID string</em> is about the same but looks more
+ technically and is nothing a user should bother with. You could the ID
+ string and map it to an appropriate display string in a particular
+ language. Of course you could do that with the property ID as well and
+ with less overhead, but people (including software developers) tend to be
+ better in remembering symbolic constants than remembering numbers.</p>
+
+
+<table width="100%" cellspacing="2" cellpadding="2" border="0">
+<tr>
+
+<td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">Property ID</p>
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">Property Name</p>
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">Property ID String</p>
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">Property Type</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">2</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Title</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_TITLE</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">3</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Subject</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_SUBJECT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">4</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Author</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_AUTHOR</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">5</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Keywords</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_KEYWORDS</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">6</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Comments</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_COMMENTS</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">7</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Template</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_TEMPLATE</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">8</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Last Saved By</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_LASTAUTHOR</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">9</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Revision Number</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_REVNUMBER</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">10</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Total Editing Time</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_EDITTIME</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_FILETIME</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">11</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Last Printed</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_LASTPRINTED</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_FILETIME</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">12</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Create Time/Date</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_CREATE_DTM</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_FILETIME</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">13</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Last Saved Time/Date</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_LASTSAVE_DTM</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_FILETIME</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">14</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Number of Pages</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_PAGECOUNT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">15</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Number of Words</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_WORDCOUNT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">16</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Number of Characters</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_CHARCOUNT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">17</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Thumbnail</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_THUMBNAIL</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_CF</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">18</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Name of Creating Application</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_APPNAME</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">19</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Security</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_SECURITY</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+
+</tr>
+</table>
+
+</td>
+</tr>
+</table>
+</div>
+<br>
+
+
+
+
+<div align="right">
+<table cellspacing="0" cellpadding="2" border="0" width="98%">
+<tr>
+<td bgcolor="#525D76"><font color="#ffffff" size="-1"><font face="Arial,sans-serif"><b>Property IDs in The Document Summary Information Stream</b></font></font></td>
+</tr>
+<tr>
+<td>
+<br>
+
+
+<p align="justify">The Document Summary Information stream has two sections with a section
+ format ID of <code>0xD5CDD5022E9C101B939708002B2CF9AE</code> for the first
+ one. The following table defines the meaning of the property IDs in the
+ first section. See the preceeding section for interpreting the table.</p>
+
+
+<table width="100%" cellspacing="2" cellpadding="2" border="0">
+<tr>
+
+<td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">Property ID</p>
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">Property name</p>
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">Property ID string</p>
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">VT type</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">2</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Category</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_CATEGORY</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">3</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PresentationTarget</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_PRESFORMAT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">4</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Bytes</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_BYTECOUNT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">5</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Lines</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_LINECOUNT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">6</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Paragraphs</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_PARCOUNT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">7</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Slides</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_SLIDECOUNT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">8</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Notes</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_NOTECOUNT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">9</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">HiddenSlides</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_HIDDENCOUNT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">10</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">MMClips</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_MMCLIPCOUNT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">11</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">ScaleCrop</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_SCALE</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_BOOL</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">12</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">HeadingPairs</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_HEADINGPAIR</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_VARIANT | VT_VECTOR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">13</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">TitlesofParts</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_DOCPARTS</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR | VT_VECTOR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">14</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Manager</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_MANAGER</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">15</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Company</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_COMPANY</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">16</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">LinksUpTo Date</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">PID_LINKSDIRTY</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_BOOL</p>
+</font></td>
+
+</tr>
+</table>
+
+</td>
+</tr>
+</table>
+</div>
+<br>
+
+</td>
+</tr>
+</table>
+</div>
+<br>
+
+
+
+
+<div align="right">
+<table cellspacing="0" cellpadding="2" border="0" width="99%">
+<tr>
+<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>Property Types</b></font></font></td>
+</tr>
+<tr>
+<td>
+<br>
+
+<anchor id="property_types"></anchor>
+
+
+<p align="justify">A property consists of a DWord <em>type field</em> followed by the
+ property value. The property type is an integer value and tells how the
+ data byte following it are to be interpreted. In the Microsoft world it is
+ also known as the <em>variant</em>.</p>
+
+
+<p align="justify">The <em>Usage</em> column says where a variant type may occur. Not all
+ of them are allowed in a property set but just those marked with a [P].
+ <em>[V]</em> - may appear in a VARIANT, <em>[T]</em> - may
+ appear in a TYPEDESC, <em>[P]</em> - may appear in an OLE property
+ set, <em>[S]</em> - may appear in a Safe Array.</p>
+
+
+<table width="100%" cellspacing="2" cellpadding="2" border="0">
+<tr>
+
+<td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">Variant ID</p>
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">Variant Type</p>
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">Usage</p>
+</font></td>
+ <td style="font-weight: bold" valign="top" bgcolor="#006CB8" align="center"><font size="-1" color="#ffffff">
+<p align="justify">Description</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">0</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_EMPTY</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">nothing</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">1</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_NULL</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">SQL style Null</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">2</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I2</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [P] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">2 byte signed int</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">3</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I4</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [P] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">4 byte signed int</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">4</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_R4</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [P] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">4 byte real</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">5</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_R8</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [P] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">8 byte real</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">6</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_CY</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [P] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">currency</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">7</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_DATE</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [P] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">date</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">8</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_BSTR</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [P] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">OLE Automation string</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">9</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_DISPATCH</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [P] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">IDispatch *</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">10</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_ERROR</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">SCODE</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">11</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_BOOL</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [P] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">True=-1, False=0</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">12</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_VARIANT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [P] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VARIANT *</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">13</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_UNKNOWN</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">IUnknown *</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">14</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_DECIMAL</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">16 byte fixed point</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">16</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I1</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">signed char</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">17</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_UI1</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V] [T] [P] [S]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">unsigned char</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">18</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_UI2</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T] [P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">unsigned short</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">19</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_UI4</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T] [P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">unsigned short</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">20</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_I8</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T] [P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">signed 64-bit int</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">21</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_UI8</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T] [P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">unsigned 64-bit int</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">22</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_INT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">signed machine int</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">23</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_UINT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">unsigned machine int</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">24</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_VOID</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">C style void</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">25</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_HRESULT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Standard return type</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">26</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_PTR</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">pointer type</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">27</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_SAFEARRAY</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">(use VT_ARRAY in VARIANT)</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">28</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_CARRAY</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">C style array</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">29</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_USERDEFINED</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">user defined type</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">30</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPSTR</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T] [P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">null terminated string</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">31</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_LPWSTR</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[T] [P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">wide null terminated string</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">64</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_FILETIME</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">FILETIME</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">65</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_BLOB</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Length prefixed bytes</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">66</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_STREAM</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Name of the stream follows</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">67</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_STORAGE</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Name of the storage follows</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">68</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_STREAMED_OBJECT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Stream contains an object</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">69</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_STORED_OBJECT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Storage contains an object</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">70</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_BLOB_OBJECT</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Blob contains an object</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">71</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_CF</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">Clipboard format</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">72</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_CLSID</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">A Class ID</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">0x1000</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_VECTOR</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[P]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">simple counted array</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">0x2000</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_ARRAY</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">SAFEARRAY*</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">0x4000</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_BYREF</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">[V]</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">void* for local use</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">0x8000</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_RESERVED</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<p align="justify"></p>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<p align="justify"></p>
+</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">0xFFFF</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_ILLEGAL</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<p align="justify"></p>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<p align="justify"></p>
+</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">0xFFF</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_ILLEGALMASKED</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<p align="justify"></p>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<p align="justify"></p>
+</p>
+</font></td>
+
+</tr>
+<tr>
+
+<td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">0xFFF</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">VT_TYPEMASK</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<p align="justify"></p>
+</p>
+</font></td>
+ <td valign="top" bgcolor="#a0ddf0" align="left"><font size="-1" color="#000000">
+<p align="justify">
+<p align="justify"></p>
+</p>
+</font></td>
+
+</tr>
+</table>
+
+</td>
+</tr>
+</table>
+</div>
+<br>
+
+
+
+
+<div align="right">
+<table cellspacing="0" cellpadding="2" border="0" width="99%">
+<tr>
+<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>References</b></font></font></td>
+</tr>
+<tr>
+<td>
+<br>
+
+
+<p align="justify">In order to assemble the HPSF description I used information publically
+ available on the Internet only. The references given below have been very
+ helpful. If you have any amendments or corrections, please let us know!
+ Thank you!</p>
+
+
+<ol>
+
+
+<li>
+
+<p align="justify">In
+ <a href="http://www.kyler.com/pubs/ddj9894.html"><em>Understanding OLE
+ documents</em></a>, Ken Kyler gives an introduction to OLE2
+ documents
+ and especially to property sets. He names the property names, types, and
+ IDs of the Summary Information and Document Summary Information
+ stream.</p>
+
+</li>
+
+
+<li>
+
+<p align="justify">The
+ <a href="http://www.dwam.net/docs/oleref/"><em>ActiveX Programmer's
+ Reference</em></a> at
+ <a href="http://www.dwam.net/docs/oleref/">http://www.dwam.net/docs/oleref/</a>
+ seems a little outdated, but that's what I have found.</p>
+
+</li>
+
+
+<li>
+
+<p align="justify">An overview of the <code>VT_</code> types is in
+ <a href="http://www.marin.clara.net/COM/variant_type_definitions.htm"><em>Variant
+ Type Definitions</em></a>.</p>
+
+</li>
+
+
+<li>
+
+<p align="justify">What is a <code>FILETIME</code>? The answer can be found for example under
+ <a href="http://www.vbapi.com/ref/f/filetime.html">http://www.vbapi.com/ref/f/filetime.html</a>
+ or
+ <a href="http://www.cs.rpi.edu/courses/fall01/os/FILETIME.html">http://www.cs.rpi.edu/courses/fall01/os/FILETIME.html</a>. In
+ short:
+ <em>The FILETIME structure holds a date and time associated with a file.
+ The structure identifies a 64-bit integer specifying the number of
+ 100-nanosecond intervals which have passed since January 1, 1601. This
+ 64-bit value is split into the two dwords stored in the
+ structure.</em>
+</p>
+
+</li>
+
+
+<li>
+
+<p align="justify">This documentation origins from the <a href="http://www.rainer-klute.de/~klute/Software/poibrowser/doc/HPSF-Description.html">HPSF description</a> available at <a href="http://www.rainer-klute.de/~klute/Software/poibrowser/doc/HPSF-Description.html">http://www.rainer-klute.de/~klute/Software/poibrowser/doc/HPSF-Description.html</a>.</p>
+
+</li>
+
+</ol>
+
+</td>
+</tr>
+</table>
+</div>
+<br>
+
</td>
</tr>
</table>
<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE document PUBLIC "-//APACHE//DTD Documentation V1.0//EN" "../dtd/document-v10.dtd">
+<!DOCTYPE document PUBLIC "-//APACHE//DTD Documentation V1.0//EN" "../dtd/document-v10.dtd">
<document>
<header>
- <title>HPSF Internals</title>
+ <title>HPSF Internals: The Horrible Property Set Format</title>
<authors>
<person name="Rainer Klute" email="klute@rainer-klute.de"/>
</authors>
</header>
<body>
<s1 title="HPSF Internals">
- <p class="todo">TODO: This documentation is still to be written. For the
- time being, please see <link
- href="http://www.rainer-klute.de/~klute/Software/poibrowser/doc/HPSF-Description.html">http://www.rainer-klute.de/~klute/Software/poibrowser/doc/HPSF-Description.html</link>.</p>
- </s1>
- </body>
+
+ <s2 title="Introduction">
+
+ <p>A Microsoft Office document is internally organized like a filesystem
+ with directory and files. Microsoft calls these files
+ <strong>streams</strong>. A document can have properties attached to it,
+ like author, title, number of words etc. These metadata are not stored in
+ the main stream of, say, a Word document, but instead in a dedicated
+ stream with a special format. Usually this stream's name is
+ <code>\005SummaryInformation</code>, where <code>\005</code> represents
+ the character with a decimal value of 5.</p>
+
+ <p>A single piece of information in the stream is called a
+ <strong>property</strong>, for example the document title. Each property
+ has an integral <strong>ID</strong> (e.g. 2 for title), a
+ <strong>type</strong> (telling that the title is a string of bytes) and a
+ <strong>value</strong> (what this is should be obvious). A stream
+ containing properties is called a
+ <strong>property set stream</strong>.</p>
+
+ <p>This document describes the internal structure of a property set stream,
+ i.e. the <strong>Horrible Property Set Format (HDF)</strong>. It does not
+ describe how a Microsoft Office document is organized internally and how
+ to retrieve a stream from it. See the <link href="../POIFS/index.html">POIFS documentation</link> for
+ that kind of stuff.</p>
+
+ <p>The Horrible Property Set Format is not only used in the Summary
+ Information stream in the top-level document of a Microsoft Office
+ document. Often there is also a property set stream named
+ <code>\005DocumentSummaryInformation</code> with additional properties.
+ Embedded documents may have their own property set streams. You cannot
+ tell by a stream's name whether it is a property set stream or not.
+ Instead you have to open the stream and look at its bytes.</p>
+ </s2>
+
+
+
+ <s2 title="Data Types">
+
+ <p>Before delving into the details of the property set stream format we
+ have to have a short look at data types. Integral values are stored in the
+ so-called <strong>little endian</strong> format. In this format the bytes
+ that make out an integral value are stored in the "wrong" order. For
+ example, the decimal value 4660 is 0x1234 in the hexadecimal notation. If
+ you think this should be represented by a byte 0x12 followed by another
+ byte 0x34, you are right. This is called the <strong>big endian</strong>
+ format. In the little endian format, however, this order is reversed and
+ the low-value byte comes first: 0x3412.
+ </p>
+
+ <p>The following table gives an overview about some important data
+ types:</p>
+
+ <table>
+
+ <tr>
+ <th>
+ <p>Name</p>
+ </th>
+ <th>
+ <p>Length</p>
+ </th>
+ <th>
+ <p>Example (Little Endian)</p>
+ </th>
+ <th>
+ <p>Example (Big Endian)</p>
+ </th>
+ </tr>
+
+ <tr>
+ <td><p><strong>Bytes</strong></p></td>
+ <td>
+ <p>1 byte</p>
+ </td>
+ <td><p><code>0x12</code></p></td>
+ <td><p><code>0x12</code></p></td>
+ </tr>
+
+ <tr>
+ <td><p><strong>Word</strong></p></td>
+ <td>
+ <p>2 bytes</p>
+ </td>
+ <td><p><code>0x1234</code></p></td>
+ <td><p><code>0x3412</code></p></td>
+ </tr>
+
+ <tr>
+ <td><p><strong>DWord</strong></p></td>
+ <td>
+ <p>4 bytes</p>
+ </td>
+ <td><p><code>0x12345678</code></p></td>
+ <td><p><code>0x78563412</code></p></td>
+ </tr>
+
+ <tr>
+ <td>
+ <p><strong>ClassID</strong></p>
+ <p>A sequence of one DWord, two Words and eight Bytes</p>
+ </td>
+
+ <td>
+ <p>16 bytes</p>
+ </td>
+
+ <td>
+ <p><code>0xE0859FF2F94F6810AB9108002B27B3D9</code> resp.
+ <code>E0859FF2-F94F-6810-AB-91-08-00-2B-27-B3-D9</code></p>
+ </td>
+
+ <td>
+ <p><code>0xF29F85E04FF91068AB9108002B27B3D9</code> resp.
+ <code>F29F85E0-4FF9-1068-AB-91-08-00-2B-27-B3-D9</code></p>
+ </td>
+ </tr>
+
+ <tr>
+ <td></td>
+ <td></td>
+ <td>
+ <p>The ClassID examples are given here in two different notations. The
+ second notation without the "0x" at the beginning and with dashes
+ inside shows the internal grouping into one DWord, two Words and eight
+ Bytes.</p>
+ </td>
+ <td>
+ <p><em>Watch out:</em> Microsoft documentation and tools show class IDs
+ a little bit differently like
+ <code>F29F85E0-4FF9-1068-AB91-08002B27B3D9</code>.
+ However, that representation is (intentionally?) misleading with
+ respect to endianess.</p>
+ </td>
+ </tr>
+ </table>
+ </s2>
+
+
+
+ <s2 title="HPSF Overview">
+
+ <p>A property set stream consists of three main parts:</p>
+
+ <ol>
+ <li>
+ <p>The <strong>header</strong> and</p>
+ </li>
+ <li>
+ <p>the <strong>section(s)</strong> containing the properties.</p>
+ </li>
+ </ol>
+ </s2>
+
+
+
+ <s2 title="The Header">
+
+ <p>The first bytes in a property set stream is the <strong>header</strong>.
+ It has a fixed length and looks like this:</p>
+
+ <table>
+ <tr>
+ <th>
+ <p>Offset</p>
+ </th>
+ <th>
+ <p>Type</p>
+ </th>
+ <th>
+ <p>Contents</p>
+ </th>
+ <th>
+ <p>Remarks</p>
+ </th>
+ </tr>
+
+ <tr>
+ <td>
+ <p>0</p>
+ </td>
+ <td>
+ <p>Word</p>
+ </td>
+ <td><p><code>0xFFFE</code></p></td>
+ <td>
+ <p>If the first four bytes of a stream do not contain these values, the
+ stream is not a property set stream.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <p>2</p>
+ </td>
+ <td>
+ <p>Word</p>
+ </td>
+ <td><p><code>0x0000</code></p></td>
+ <td></td>
+ </tr>
+
+ <tr>
+ <td>
+ <p>4</p>
+ </td>
+ <td>
+ <p>DWord</p>
+ </td>
+ <td>
+ <p>Denotes the operating system and the OS version under which this
+ stream was created. The operating system ID is in the DWord's higher
+ word (after little endian decoding): <code>0x0000</code> for Win16,
+ <code>0x0001</code> for Macintosh and <code>0x0002</code> for Win32 - that's
+ all. The reader is most likely aware of the fact that there are some
+ more operating systems. However, Microsoft does not seem to know.</p>
+ </td>
+ <td></td>
+ </tr>
+
+ <tr>
+ <td>
+ <p>8</p>
+ </td>
+ <td>
+ <p>ClassID</p>
+ </td>
+ <td><p><code>0x00000000000000000000000000000000</code></p></td>
+ <td>
+ <p>Most property set streams have this value but this is not
+ required.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <p>24</p>
+ </td>
+ <td>
+ <p>DWord</p>
+ </td>
+ <td>
+ <p><code>0x01000000</code> or greater</p>
+ </td>
+ <td>
+ <p>Section count. This field's value should be equal to 1 or greater.
+ Microsoft claims that this is a "reserved" field, but it seems to tell
+ how many sections (see below) are following in the stream. This would
+ really make sense because otherwise you could not know where and how
+ far you should read section data.</p>
+ </td>
+ </tr>
+ </table>
+ </s2>
+
+
+
+ <s2 title="Section List">
+
+ <p>Following the header is the section list. This is an array of pairs each
+ consisting of a section format ID and an offset. This array has as many
+ pairs of ClassID and and DWord fields as the section count field in the
+ header says. The Summary Information stream contains a single section, the
+ Document Summary Information stream contains two.</p>
+
+ <table>
+ <tr>
+ <th>
+ <p>Type</p>
+ </th>
+ <th>
+ <p>Contents</p>
+ </th>
+ <th>
+ <p>Remarks</p>
+ </th>
+ </tr>
+
+ <tr>
+ <td>
+ <p>ClassID</p>
+ </td>
+ <td>
+ <p>Section format ID</p>
+ </td>
+ <td>
+ <p><code>0xF29F85E04FF91068AB9108002B27B3D9</code> for the single section
+ in the Summary Information stream.</p>
+
+ <p><code>0xD5CDD5022E9C101B939708002B2CF9AE</code> for the first
+ section in the Document Summary Information stream.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <p>DWord</p>
+ </td>
+ <td>
+ <p>Offset</p>
+ </td>
+ <td>
+ <p>The number of bytes between the beginning of the stream and the
+ beginning of the section within the stream.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <p>ClassID</p>
+ </td>
+ <td>
+ <p>Section format ID</p>
+ </td>
+ <td>
+ <p>...</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <p>DWord</p>
+ </td>
+ <td>
+ <p>Offset</p>
+ </td>
+ <td>
+ <p>...</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <p>...</p>
+ </td>
+ <td>
+ <p>...</p>
+ </td>
+ <td>
+ <p>...</p>
+ </td>
+ </tr>
+ </table>
+ </s2>
+
+
+
+ <s2 title="Section">
+
+ <p>A section is divided into three parts: the section header (with the
+ section length and the number of properties in the section), the
+ properties list (with type and offset of each property), and the
+ properties themselves. Here are the details:</p>
+
+ <table>
+ <tr>
+ <th>
+ <p> </p>
+ </th>
+ <th>
+ <p>Type</p>
+ </th>
+ <th>
+ <p>Contents</p>
+ </th>
+ <th>
+ <p>Remarks</p>
+ </th>
+ </tr>
+
+ <tr>
+ <td>
+ <p>Section header</p>
+ </td>
+
+ <td>
+ <p>DWord</p>
+ </td>
+ <td>
+ <p>Length</p>
+ </td>
+ <td>
+ <p>The length of the section in bytes.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td></td>
+ <td>
+ <p>DWord</p>
+ </td>
+ <td>
+ <p>Property count</p>
+ </td>
+ <td>
+ <p>The number of properties in the section.</p>
+ </td>
+ </tr>
+
+ <tr>
+
+ <td>
+ <p>Properties list</p>
+ </td>
+
+ <td>
+ <p>DWord</p>
+ </td>
+ <td>
+ <p>Property ID</p>
+ </td>
+ <td>
+ <p>The property ID tells what the property means. For example, an ID of
+ <code>0x0002</code> in the Summary Information stands for the document's
+ title. See the <link href="#property_ids">Property IDs</link>
+ chapter below for more details.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td></td>
+ <td>
+ <p>DWord</p>
+ </td>
+ <td>
+ <p>Offset</p>
+ </td>
+ <td>
+ <p>The number of bytes between the beginning of the section and the
+ property.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td></td>
+ <td>
+ <p>...</p>
+ </td>
+ <td>
+ <p>...</p>
+ </td>
+ <td>
+ <p>...</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <p>Properties</p>
+ </td>
+
+ <td>
+ <p>DWord</p>
+ </td>
+ <td>
+ <p>Property type ("variant")</p>
+ </td>
+ <td>
+ <p>This is the property's data type, e.g. an integer value, a byte
+ string or a Unicode string. See the
+ <link href="#property_types"><em>Property Types</em></link> chapter for
+ details!</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td></td>
+ <td><p><em>Field length depends on the property type
+ ("variant")</em></p></td>
+ <td>
+ <p>Property value</p>
+ </td>
+ <td>
+ <p>This field's length depends on the property's type. These are the
+ bytes that make out the DWord, the byte string or some other data of
+ fixed or variable length.</p>
+
+ <p>The property value's length is always stored in an area which is a
+ multiple of 4 in length. If the property is shorter, e.g. a byte
+ string of 13 bytes, the remaining bytes are padded with <code>0x00</code>
+ bytes.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td></td>
+ <td>
+ <p>...</p>
+ </td>
+ <td>
+ <p>...</p>
+ </td>
+ <td>
+ <p>...</p>
+ </td>
+ </tr>
+ </table>
+ </s2>
+
+
+
+ <s2 title="Property IDs">
+ <anchor id="property_ids"/>
+
+ <p>As seen above, a section holds a property list: an array with property
+ IDs and offsets. The property ID gives each property a meaning. For
+ example, in the Summary Information stream the property ID 2 says that
+ this property is the document's title.</p>
+
+ <p>If you want to know a property ID's meaning, it is not sufficient to
+ know the ID itself. You must also know the
+ <strong>section format ID</strong>. For example, in the Document Summary
+ Information stream the property ID 2 means not the document's title but
+ its category. Due to Microsoft's infinite wisdom the section format ID is
+ not part of the section. Thus if you have only a section without the
+ stream it is in, you cannot make any sense of the properties because you
+ do not know what they mean.</p>
+
+ <p>So each section format ID has its own name space of property IDs.
+ Microsoft defined some "well-known" property IDs for the Summary
+ Information and the Document Summary Information streams. You can extend
+ them by your own additional IDs. This will be described below.</p>
+
+ <s3 title="Property IDs in The Summary Information Stream">
+
+ <p>The Summary Information stream has a single section with a section
+ format ID of <code>0xF29F85E04FF91068AB9108002B27B3D9</code>. The following
+ table defines the meaning of its property IDs. Each row associates a
+ property ID with a <em>name</em> and an <em>ID string</em>. (The property
+ <em>type</em> is just for informational purposes given here. As we have
+ seen above, the type is always given along with the value.)</p>
+
+ <p>The property <em>name</em> is a readable string which could be
+ displayed to the user. However, this string is useful only for users who
+ understand English. The property name does not help with other
+ languages.</p>
+
+ <p>The property <em>ID string</em> is about the same but looks more
+ technically and is nothing a user should bother with. You could the ID
+ string and map it to an appropriate display string in a particular
+ language. Of course you could do that with the property ID as well and
+ with less overhead, but people (including software developers) tend to be
+ better in remembering symbolic constants than remembering numbers.</p>
+
+ <table>
+ <tr>
+ <th><p>Property ID</p></th>
+ <th><p>Property Name</p></th>
+ <th><p>Property ID String</p></th>
+ <th><p>Property Type</p></th>
+ </tr>
+ <tr>
+ <td><p>2</p></td>
+ <td><p>Title</p></td>
+ <td><p>PID_TITLE</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>3</p></td>
+ <td><p>Subject</p></td>
+ <td><p>PID_SUBJECT</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>4</p></td>
+ <td><p>Author</p></td>
+ <td><p>PID_AUTHOR</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>5</p></td>
+ <td><p>Keywords</p></td>
+ <td><p>PID_KEYWORDS</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>6</p></td>
+ <td><p>Comments</p></td>
+ <td><p>PID_COMMENTS</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>7</p></td>
+ <td><p>Template</p></td>
+ <td><p>PID_TEMPLATE</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>8</p></td>
+ <td><p>Last Saved By</p></td>
+ <td><p>PID_LASTAUTHOR</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>9</p></td>
+ <td><p>Revision Number</p></td>
+ <td><p>PID_REVNUMBER</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>10</p></td>
+ <td><p>Total Editing Time</p></td>
+ <td><p>PID_EDITTIME</p></td>
+ <td><p>VT_FILETIME</p></td>
+ </tr>
+ <tr>
+ <td><p>11</p></td>
+ <td><p>Last Printed</p></td>
+ <td><p>PID_LASTPRINTED</p></td>
+ <td><p>VT_FILETIME</p></td>
+ </tr>
+ <tr>
+ <td><p>12</p></td>
+ <td><p>Create Time/Date</p></td>
+ <td><p>PID_CREATE_DTM</p></td>
+ <td><p>VT_FILETIME</p></td>
+ </tr>
+ <tr>
+ <td><p>13</p></td>
+ <td><p>Last Saved Time/Date</p></td>
+ <td><p>PID_LASTSAVE_DTM</p></td>
+ <td><p>VT_FILETIME</p></td>
+ </tr>
+ <tr>
+ <td><p>14</p></td>
+ <td><p>Number of Pages</p></td>
+ <td><p>PID_PAGECOUNT</p></td>
+ <td><p>VT_I4</p></td>
+ </tr>
+ <tr>
+ <td><p>15</p></td>
+ <td><p>Number of Words</p></td>
+ <td><p>PID_WORDCOUNT</p></td>
+ <td><p>VT_I4</p></td>
+ </tr>
+ <tr>
+ <td><p>16</p></td>
+ <td><p>Number of Characters</p></td>
+ <td><p>PID_CHARCOUNT</p></td>
+ <td><p>VT_I4</p></td>
+ </tr>
+ <tr>
+ <td><p>17</p></td>
+ <td><p>Thumbnail</p></td>
+ <td><p>PID_THUMBNAIL</p></td>
+ <td><p>VT_CF</p></td>
+ </tr>
+ <tr>
+ <td><p>18</p></td>
+ <td><p>Name of Creating Application</p></td>
+ <td><p>PID_APPNAME</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>19</p></td>
+ <td><p>Security</p></td>
+ <td><p>PID_SECURITY</p></td>
+ <td><p>VT_I4</p></td>
+ </tr>
+ </table>
+ </s3>
+
+
+
+ <s3 title="Property IDs in The Document Summary Information Stream">
+
+ <p>The Document Summary Information stream has two sections with a section
+ format ID of <code>0xD5CDD5022E9C101B939708002B2CF9AE</code> for the first
+ one. The following table defines the meaning of the property IDs in the
+ first section. See the preceeding section for interpreting the table.</p>
+
+ <table>
+ <tr>
+ <th><p>Property ID</p></th>
+ <th><p>Property name</p></th>
+ <th><p>Property ID string</p></th>
+ <th><p>VT type</p></th>
+ </tr>
+ <tr>
+ <td><p>2</p></td>
+ <td><p>Category</p></td>
+ <td><p>PID_CATEGORY</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>3</p></td>
+ <td><p>PresentationTarget</p></td>
+ <td><p>PID_PRESFORMAT</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>4</p></td>
+ <td><p>Bytes</p></td>
+ <td><p>PID_BYTECOUNT</p></td>
+ <td><p>VT_I4</p></td>
+ </tr>
+ <tr>
+ <td><p>5</p></td>
+ <td><p>Lines</p></td>
+ <td><p>PID_LINECOUNT</p></td>
+ <td><p>VT_I4</p></td>
+ </tr>
+ <tr>
+ <td><p>6</p></td>
+ <td><p>Paragraphs</p></td>
+ <td><p>PID_PARCOUNT</p></td>
+ <td><p>VT_I4</p></td>
+ </tr>
+ <tr>
+ <td><p>7</p></td>
+ <td><p>Slides</p></td>
+ <td><p>PID_SLIDECOUNT</p></td>
+ <td><p>VT_I4</p></td>
+ </tr>
+ <tr>
+ <td><p>8</p></td>
+ <td><p>Notes</p></td>
+ <td><p>PID_NOTECOUNT</p></td>
+ <td><p>VT_I4</p></td>
+ </tr>
+ <tr>
+ <td><p>9</p></td>
+ <td><p>HiddenSlides</p></td>
+ <td><p>PID_HIDDENCOUNT</p></td>
+ <td><p>VT_I4</p></td>
+ </tr>
+ <tr>
+ <td><p>10</p></td>
+ <td><p>MMClips</p></td>
+ <td><p>PID_MMCLIPCOUNT</p></td>
+ <td><p>VT_I4</p></td>
+ </tr>
+ <tr>
+ <td><p>11</p></td>
+ <td><p>ScaleCrop</p></td>
+ <td><p>PID_SCALE</p></td>
+ <td><p>VT_BOOL</p></td>
+ </tr>
+ <tr>
+ <td><p>12</p></td>
+ <td><p>HeadingPairs</p></td>
+ <td><p>PID_HEADINGPAIR</p></td>
+ <td><p>VT_VARIANT | VT_VECTOR</p></td>
+ </tr>
+ <tr>
+ <td><p>13</p></td>
+ <td><p>TitlesofParts</p></td>
+ <td><p>PID_DOCPARTS</p></td>
+ <td><p>VT_LPSTR | VT_VECTOR</p></td>
+ </tr>
+ <tr>
+ <td><p>14</p></td>
+ <td><p>Manager</p></td>
+ <td><p>PID_MANAGER</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>15</p></td>
+ <td><p>Company</p></td>
+ <td><p>PID_COMPANY</p></td>
+ <td><p>VT_LPSTR</p></td>
+ </tr>
+ <tr>
+ <td><p>16</p></td>
+ <td><p>LinksUpTo Date</p></td>
+ <td><p>PID_LINKSDIRTY</p></td>
+ <td><p>VT_BOOL</p></td>
+ </tr>
+ </table>
+ </s3>
+ </s2>
+
+
+
+ <s2 title="Property Types">
+ <anchor id="property_types"/>
+
+ <p>A property consists of a DWord <em>type field</em> followed by the
+ property value. The property type is an integer value and tells how the
+ data byte following it are to be interpreted. In the Microsoft world it is
+ also known as the <em>variant</em>.</p>
+
+ <p>The <em>Usage</em> column says where a variant type may occur. Not all
+ of them are allowed in a property set but just those marked with a [P].
+ <strong>[V]</strong> - may appear in a VARIANT, <strong>[T]</strong> - may
+ appear in a TYPEDESC, <strong>[P]</strong> - may appear in an OLE property
+ set, <strong>[S]</strong> - may appear in a Safe Array.</p>
+
+ <table>
+ <tr>
+ <th><p>Variant ID</p></th>
+ <th><p>Variant Type</p></th>
+ <th><p>Usage</p> </th>
+ <th><p>Description</p></th>
+ </tr>
+ <tr>
+ <td><p>0</p></td>
+ <td><p>VT_EMPTY</p></td>
+ <td><p>[V] [P]</p></td>
+ <td><p>nothing</p></td>
+ </tr>
+ <tr>
+ <td><p>1</p></td>
+ <td><p>VT_NULL</p></td>
+ <td><p>[V] [P]</p></td>
+ <td><p>SQL style Null</p></td>
+ </tr>
+ <tr>
+ <td><p>2</p></td>
+ <td><p>VT_I2</p></td>
+ <td><p>[V] [T] [P] [S]</p></td>
+ <td><p>2 byte signed int</p></td>
+ </tr>
+ <tr>
+ <td><p>3</p></td>
+ <td><p>VT_I4</p></td>
+ <td><p>[V] [T] [P] [S]</p></td>
+ <td><p>4 byte signed int</p></td>
+ </tr>
+ <tr>
+ <td><p>4</p></td>
+ <td><p>VT_R4</p></td>
+ <td><p>[V] [T] [P] [S]</p></td>
+ <td><p>4 byte real</p></td>
+ </tr>
+ <tr>
+ <td><p>5</p></td>
+ <td><p>VT_R8</p></td>
+ <td><p>[V] [T] [P] [S]</p></td>
+ <td><p>8 byte real</p></td>
+ </tr>
+ <tr>
+ <td><p>6</p></td>
+ <td><p>VT_CY</p></td>
+ <td><p>[V] [T] [P] [S]</p></td>
+ <td><p>currency</p></td>
+ </tr>
+ <tr>
+ <td><p>7</p></td>
+ <td><p>VT_DATE</p></td>
+ <td><p>[V] [T] [P] [S]</p></td>
+ <td><p>date</p></td>
+ </tr>
+ <tr>
+ <td><p>8</p></td>
+ <td><p>VT_BSTR</p></td>
+ <td><p>[V] [T] [P] [S]</p></td>
+ <td><p>OLE Automation string</p></td>
+ </tr>
+ <tr>
+ <td><p>9</p></td>
+ <td><p>VT_DISPATCH</p></td>
+ <td><p>[V] [T] [P] [S]</p></td>
+ <td><p>IDispatch *</p></td>
+ </tr>
+ <tr>
+ <td><p>10</p></td>
+ <td><p>VT_ERROR</p></td>
+ <td><p>[V] [T] [S]</p></td>
+ <td><p>SCODE</p></td>
+ </tr>
+ <tr>
+ <td><p>11</p></td>
+ <td><p>VT_BOOL</p></td>
+ <td><p>[V] [T] [P] [S]</p></td>
+ <td><p>True=-1, False=0</p></td>
+ </tr>
+ <tr>
+ <td><p>12</p></td>
+ <td><p>VT_VARIANT</p></td>
+ <td><p>[V] [T] [P] [S]</p></td>
+ <td><p>VARIANT *</p></td>
+ </tr>
+ <tr>
+ <td><p>13</p></td>
+ <td><p>VT_UNKNOWN</p></td>
+ <td><p>[V] [T] [S]</p></td>
+ <td><p>IUnknown *</p></td>
+ </tr>
+ <tr>
+ <td><p>14</p></td>
+ <td><p>VT_DECIMAL</p></td>
+ <td><p>[V] [T] [S]</p></td>
+ <td><p>16 byte fixed point</p></td>
+ </tr>
+ <tr>
+ <td><p>16</p></td>
+ <td><p>VT_I1</p></td>
+ <td><p>[T]</p></td>
+ <td><p>signed char</p></td>
+ </tr>
+ <tr>
+ <td><p>17</p></td>
+ <td><p>VT_UI1</p></td>
+ <td><p>[V] [T] [P] [S]</p></td>
+ <td><p>unsigned char</p></td>
+ </tr>
+ <tr>
+ <td><p>18</p></td>
+ <td><p>VT_UI2</p></td>
+ <td><p>[T] [P]</p></td>
+ <td><p>unsigned short</p></td>
+ </tr>
+ <tr>
+ <td><p>19</p></td>
+ <td><p>VT_UI4</p></td>
+ <td><p>[T] [P]</p></td>
+ <td><p>unsigned short</p></td>
+ </tr>
+ <tr>
+ <td><p>20</p></td>
+ <td><p>VT_I8</p></td>
+ <td><p>[T] [P]</p></td>
+ <td><p>signed 64-bit int</p></td>
+ </tr>
+ <tr>
+ <td><p>21</p></td>
+ <td><p>VT_UI8</p></td>
+ <td><p>[T] [P]</p></td>
+ <td><p>unsigned 64-bit int</p></td>
+ </tr>
+ <tr>
+ <td><p>22</p></td>
+ <td><p>VT_INT</p></td>
+ <td><p>[T]</p></td>
+ <td><p>signed machine int</p></td>
+ </tr>
+ <tr>
+ <td><p>23</p></td>
+ <td><p>VT_UINT</p></td>
+ <td><p>[T]</p></td>
+ <td><p>unsigned machine int</p></td>
+ </tr>
+ <tr>
+ <td><p>24</p></td>
+ <td><p>VT_VOID</p></td>
+ <td><p>[T]</p></td>
+ <td><p>C style void</p></td>
+ </tr>
+ <tr>
+ <td><p>25</p></td>
+ <td><p>VT_HRESULT</p></td>
+ <td><p>[T]</p></td>
+ <td><p>Standard return type</p></td>
+ </tr>
+ <tr>
+ <td><p>26</p></td>
+ <td><p>VT_PTR</p></td>
+ <td><p>[T]</p></td>
+ <td><p>pointer type</p></td>
+ </tr>
+ <tr>
+ <td><p>27</p></td>
+ <td><p>VT_SAFEARRAY</p></td>
+ <td><p>[T]</p></td>
+ <td><p>(use VT_ARRAY in VARIANT)</p></td>
+ </tr>
+ <tr>
+ <td><p>28</p></td>
+ <td><p>VT_CARRAY</p></td>
+ <td><p>[T]</p></td>
+ <td><p>C style array</p></td>
+ </tr>
+ <tr>
+ <td><p>29</p></td>
+ <td><p>VT_USERDEFINED</p></td>
+ <td><p>[T]</p></td>
+ <td><p>user defined type</p></td>
+ </tr>
+ <tr>
+ <td><p>30</p></td>
+ <td><p>VT_LPSTR</p></td>
+ <td><p>[T] [P]</p></td>
+ <td><p>null terminated string</p></td>
+ </tr>
+ <tr>
+ <td><p>31</p></td>
+ <td><p>VT_LPWSTR</p></td>
+ <td><p>[T] [P]</p></td>
+ <td><p>wide null terminated string</p></td>
+ </tr>
+ <tr>
+ <td><p>64</p></td>
+ <td><p>VT_FILETIME</p></td>
+ <td><p>[P]</p></td>
+ <td><p>FILETIME</p></td>
+ </tr>
+ <tr>
+ <td><p>65</p></td>
+ <td><p>VT_BLOB</p></td>
+ <td><p>[P]</p></td>
+ <td><p>Length prefixed bytes</p></td>
+ </tr>
+ <tr>
+ <td><p>66</p></td>
+ <td><p>VT_STREAM</p></td>
+ <td><p>[P]</p></td>
+ <td><p>Name of the stream follows</p></td>
+ </tr>
+ <tr>
+ <td><p>67</p></td>
+ <td><p>VT_STORAGE</p></td>
+ <td><p>[P]</p></td>
+ <td><p>Name of the storage follows</p></td>
+ </tr>
+ <tr>
+ <td><p>68</p></td>
+ <td><p>VT_STREAMED_OBJECT</p></td>
+ <td><p>[P]</p></td>
+ <td><p>Stream contains an object</p></td>
+ </tr>
+ <tr>
+ <td><p>69</p></td>
+ <td><p>VT_STORED_OBJECT</p></td>
+ <td><p>[P]</p></td>
+ <td><p>Storage contains an object</p></td>
+ </tr>
+ <tr>
+ <td><p>70</p></td>
+ <td><p>VT_BLOB_OBJECT</p></td>
+ <td><p>[P]</p></td>
+ <td><p>Blob contains an object</p></td>
+ </tr>
+ <tr>
+ <td><p>71</p></td>
+ <td><p>VT_CF</p></td>
+ <td><p>[P]</p></td>
+ <td><p>Clipboard format</p></td>
+ </tr>
+ <tr>
+ <td><p>72</p></td>
+ <td><p>VT_CLSID</p></td>
+ <td><p>[P]</p></td>
+ <td><p>A Class ID</p></td>
+ </tr>
+ <tr>
+ <td><p>0x1000</p></td>
+ <td><p>VT_VECTOR</p></td>
+ <td><p>[P]</p></td>
+ <td><p>simple counted array</p></td>
+ </tr>
+ <tr>
+ <td><p>0x2000</p></td>
+ <td><p>VT_ARRAY</p></td>
+ <td><p>[V]</p></td>
+ <td><p>SAFEARRAY*</p></td>
+ </tr>
+ <tr>
+ <td><p>0x4000</p></td>
+ <td><p>VT_BYREF</p></td>
+ <td><p>[V]</p></td>
+ <td><p>void* for local use</p></td>
+ </tr>
+ <tr>
+ <td><p>0x8000</p></td>
+ <td><p>VT_RESERVED</p></td>
+ <td><p><br/></p></td>
+ <td><p><br/></p></td>
+ </tr>
+ <tr>
+ <td><p>0xFFFF</p></td>
+ <td><p>VT_ILLEGAL</p></td>
+ <td><p><br/></p></td>
+ <td><p><br/></p></td>
+ </tr>
+ <tr>
+ <td><p>0xFFF</p></td>
+ <td><p>VT_ILLEGALMASKED</p></td>
+ <td><p><br/></p></td>
+ <td><p><br/></p></td>
+ </tr>
+ <tr>
+ <td><p>0xFFF</p></td>
+ <td><p>VT_TYPEMASK</p></td>
+ <td><p><br/></p></td>
+ <td><p><br/></p></td>
+ </tr>
+ </table>
+ </s2>
+
+
+
+ <s2 title="References">
+
+ <p>In order to assemble the HPSF description I used information publically
+ available on the Internet only. The references given below have been very
+ helpful. If you have any amendments or corrections, please let us know!
+ Thank you!</p>
+
+ <ol>
+
+ <li>
+ <p>In
+ <link href="http://www.kyler.com/pubs/ddj9894.html"><em>Understanding OLE
+ documents</em></link>, Ken Kyler gives an introduction to OLE2
+ documents
+ and especially to property sets. He names the property names, types, and
+ IDs of the Summary Information and Document Summary Information
+ stream.</p>
+ </li>
+
+ <li>
+ <p>The
+ <link href="http://www.dwam.net/docs/oleref/"><em>ActiveX Programmer's
+ Reference</em></link> at
+ <link href="http://www.dwam.net/docs/oleref/">http://www.dwam.net/docs/oleref/</link>
+ seems a little outdated, but that's what I have found.</p>
+ </li>
+
+ <li>
+ <p>An overview of the <code>VT_</code> types is in
+ <link href="http://www.marin.clara.net/COM/variant_type_definitions.htm"><em>Variant
+ Type Definitions</em></link>.</p>
+ </li>
+
+ <li>
+ <p>What is a <code>FILETIME</code>? The answer can be found for example under
+ <link href="http://www.vbapi.com/ref/f/filetime.html">http://www.vbapi.com/ref/f/filetime.html</link>
+ or
+ <link href="http://www.cs.rpi.edu/courses/fall01/os/FILETIME.html">http://www.cs.rpi.edu/courses/fall01/os/FILETIME.html</link>. In
+ short:
+ <em>The FILETIME structure holds a date and time associated with a file.
+ The structure identifies a 64-bit integer specifying the number of
+ 100-nanosecond intervals which have passed since January 1, 1601. This
+ 64-bit value is split into the two dwords stored in the
+ structure.</em></p>
+ </li>
+
+ <li>
+ <p>This documentation origins from the <link href="http://www.rainer-klute.de/~klute/Software/poibrowser/doc/HPSF-Description.html">HPSF description</link> available at <link href="http://www.rainer-klute.de/~klute/Software/poibrowser/doc/HPSF-Description.html">http://www.rainer-klute.de/~klute/Software/poibrowser/doc/HPSF-Description.html</link>.</p>
+ </li>
+ </ol>
+ </s2>
+ </s1>
+ </body>
</document>
+
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