By default, the Desktop Toolbar is not enabled. To enable this, perform the following steps. This is pretty common knowledge, but thought I’d share for those who haven’t encountered it yet.
1. On your Web Interface, browse to the specific directory of the site. For example: C:\inetpub\wwwroot\Citrix\XenApp\conf
2. You’ll now want to open the WebInterface.conf file with your preferred text editor. (Depending on your UAC settings, you may need to open the text editor with elevated privileges).
3. Find the following line #ShowDesktopViewer=Off
4. Save the WebInterface.conf file.
*Remember to perform the same function on all of your Web Interfaces. (If you have multiple for load balancing).
Here is a screenshot of how the file should look like by default, and what it should look like to enable.
Are there scenarios where you don’t want to enable the Desktop Toolbar? Simple answer, yes. We could lay out several scenarios but at the end of the day, it really is environment specific.