The MausTrap application was developed to be a small, but effective security program which prevents users from getting into Windows unless a password is supplied. It disables a few keys like the Windows key, Alt+Control+Del, Alt+Tab and a few others.

It also hides the Taskbar and the Windows Desktop, so you can't use Windows until you supply the correct password, even if it gets hacked. Use MausTrap if you leave your computer un 50e0806aeb wardcel
http://dummydoodoo.com/?p=2066
http://simanta