When using Task Manager from an ICA or RDP session, the Applications tab may remain empty, despite applications running in the user's session. The same is not seen from the console of the server, and Task Manager shows the applications as expected.

This appears to be an issue with mmhook.dll from R02 (10/06/2008 v4.5.3756.1).

Either update this DLL, or exclude Task Manager from the Multi Monitor Hook with the following Registry key:

HKLM\SOFTWARE\Citrix\CtxHook\AppInit_Dlls\Multiple Monitor Hook
"Exclude"=taskmgr.exe

Note: The value is case sensitive.