How to move C:\Program Files to a different partition

We are all accustomed to see Program files under 'C' drive.But if you want to move it to different drive what will happen?
You should not try moving the present content-otherwise there will be trouble. I would advise rather that when you install software in future you take a Custom Install, and install it into a folder you make on the other partition. But if you still want to try,do the following:-
Start>Run>Regedit>Ok
Now navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsof\Windows\CurrentVersion­\ and change the ProgramFilesDirectory entry's data in the right column. Close the registry editor and restart the machine.
Don't forget to backup before doing the trick.