HI.Is ther any reg tweak or 3rd party utility s/w to password protect any download to my PC? My cousin was surfing the net from my PC in my absense and he opened some unknown attachment, the next thing I know at next startup is the system has been affected with the Win32.Zafi.D worm. I'm using Win XP Pro with SP2 and Firefox 1.0, IE6 and Opera7.