From the MSKB, run this at CMD:

rundll32 user32.dll,LockWorkStation

For Windows 2000 only but it works.



>Seems to me that they're trying to get you to re-invent the wheel. The functionality they want is already in Windows. If they allow that the screen savers can be used, all your application needs to do is to run it (via the RUN command) when they hit the key combination.