Win 2008 - Instead of the specified startup program, the whole desktop is started on a remote desktop connection.
On a Windows 2008 server in Remote Admin Mode, users will be unable to launch an application in a terminal session by specifying the app path in the Remote Desktop Client or in "Terminal Services Configuration" - rdp-tcp - properties - environment. The application never launches and instead brings up the desktop.
This used to work on a win2k3 server.