You cannot start a RemoteAPP program that is hosted on a Windows XP SP3 virtual machine through Terminal Services Web Access or Remote Desktop Web Access in Windows Server 2008 R2, in Windows 7 or in Windows Vista
Consider the following scenario:
- You publish a RemoteApp program through Terminal Services Web Access (TS Web Access) or through Remote Desktop Web Access (RD Web Access).
- The RemoteApp program is hosted on a Windows XP Service Pack 3 (SP3) virtual machine.
- You start the RemoteApp program through TS Web Access or through RD Web Access from a computer that is running Windows Server 2008 R2, Windows 7 or Windows Vista. And, this computer installs Remote Desktop Connection 7.0.
In this scenario, the RemoteApp connection does not start. If you click the Details button, the full remote desktop of the virtual machine is displayed.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB2388381.