Earlier today I was testing Secure Application Sharing between XenClient VMs. I installed Office 2003 on Windows XP and Office 2010 in my Windows 7 VM. In the next screenshot you see the two of them running together in Windows 7. You can tell by the green border which application is coming from another VM. If it would be an application from a XenApp server, the border would be red instead.

I also learned that the VM hosting the published application will halt/crash if you switch to it.This happened because I’m using 3D Graphics support on my Windows 7 machine and using Secure Application Sharing on such VM is currently not supported.

Before you can access applications from another VM you must enable Published Applications on the source VM and enable Subscribe to Applications on your destination VM. You will also need to install SecureApplicationSharing from de XenClient tools virtual cdrom. Once installed you can open Dazzle on your destination VM and add applications it detects from the source VM.