Delegation: Kill foreign processes in RemoteDesktopServices-Manager

Hello together,
Server 2008 R2 with RemoteDesktopServices:
A Non-Admin RDP-User (Helpdesk or RDP-Operator) should be able to kill hanging processes of other RDP-Users through RemoteDesktopServices-Manager.
Proceeding as http://support.microsoft.com/kb/253831/en-us is not enough to kill foreign processes. Only own user processes are visible. Foreign processes cannot be seen.
Is there a way to manage the delegation?
thanks