Because of a protocol error this session will be disconnected using terminal services remote control in windows 2008 R2
When you try to remote control another session on a Windows 2008 R2 terminal server you may receive the message.
Change the RDP Compression setting on the server to “Balances memory and network bandwidth” (recommended) or “Optimized to use less memory” using Group Policy. If using Windows Server 2008 R2 you may also choose “Do not [...]