---
-title: Installing Commercial Vaadin Add-on Licence
+title: Installing Commercial Vaadin Add-on License
order: 5
layout: page
---
[[addons.cval]]
-= Installing Commercial Vaadin Add-on Licence
+= Installing Commercial Vaadin Add-on License
The commercial Vaadin add-ons require installing a license key before using
them. The license keys are development licenses and checked during widget set
+
image::img/directory-activate.png[width=50%, scaledwidth=70%]
+
-For official Vaadin add-ons, see <<addons-cval#addons.cval, "Installing Commercial Vaadin Add-on Licence">> for more information.
+For official Vaadin add-ons, see <<addons-cval#addons.cval, "Installing Commercial Vaadin Add-on License">> for more information.
. _In Vaadin 7.6 and older_: You need to compile the widget set as described in <<addons.maven.compiling>>.
projects for free, and many have a trial period for closed-source development.
Commercial Vaadin add-ons distributed under the CVAL license require installing
a license key as instructed in
-<<dummy/../../../framework/addons/addons-cval#addons.cval, "Installing Commercial Vaadin Add-on Licence">>.
+<<dummy/../../../framework/addons/addons-cval#addons.cval, "Installing Commercial Vaadin Add-on License">>.
== Feedback and Support