Problem:
You’ve closed your command prompt window on Hyper-V Server 2008 or Windows Server 2008 Core Installation and need to re-open it:

Solution:
Start Windows Task Manager by pressing Ctrl & Shift & Esc. Click File>New Task:

Type cmd.exe and click ok:

You now have a new command prompt window:

µ

uh… thanks for text.
mm.. bookmarked ))
Phew…. thanks for the help
Also works if you have a RDP connection to the server. However you need to be running in full screen mode for the key combination to be sent to the server not your local machine. (Assuming that is the way that you have your options set.)