WinGuard Pro Free
WinGuard Pro Free Description:
Give yourself peace of mind from people tampering with your PC with WinGuard Pro Free, stop people changing your settings, accessing unauthorized programs, and important files. Best of all it's completely FREE!
Operating System Support: Win95, Win98, WinME, WinXP, WinNT 3.x, WinNT 4.x, Windows2000