Running a Remote Desktop (Terminal Server) RDP session within another Remote Desktop RDP session is not supported on the operating systems listed in the Applies To section of this article. For instance, users connecting to a Remote Desktop Session Host server for their desktop environment and then connecting to another Remote Desktop server for Remote Apps is neither tested nor supported.
This scenario has been neither tested nor is supported. When connecting in this fashion, certain Remote Desktop functionality may not work properly, or unexpected behaviour may occur.
Window 7 and Windows Server 2008 R2 do not support running a Remote Desktop Connection session within another Remote Desktop Connection session.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
Running a Remote Desktop Connection session within another Remote Desktop Connection session is supported with Remote Desktop Protocol 8.0 for specific scenarios
for other considerations.