Starting an elevated command prompt from a folder's context menu in Windows 7

Question

Possible Duplicate:
Easiest way to get right-click “Open command window here” with admin priveleges in Windows 7

Windows 7 will display an 'Open command prompt here' context menu item if you hold the shift key down while right clicking on a folder (in Windows Explorer). I have read a couple of pages on the web which state that holding Ctrl+Shift down while clicking the 'Open command prompt here' menu item will start the command prompt with elevated privileges. This does not work on my 64-bit Windows 7 machine. I can start other programs from the task bar with elevated privileges by holding down Ctrl+Shift while clicking on the icon.

Did this feature exist in a beta version of Windows 7 and has been removed now or is there something I am missing?