I have installed an application (Microsoft Robocopy GUI) on a terminal server\Citrix presentation server while in install mode. When a power user logs in to the server (Windows 2003 R2) they receive a message, "Only administrators have permission to add, remove or configure software during a terminal services remote session. The application is installed and admins have no problem. I can see that upon login of the power user windows installer initiates. can you assist with resolving the issue.