if u use unattended XP with Klite Mega Codec using with his -Makeunattended Setup command..when i finish try installing my XP unattended..everytime i play .avi or any random media format..my PC automatic restart without warning..And my Klite Mega Codec is Latest Version..

What player are you using then?

Windows Media Player 11

That's a first i've heard. Are you playing an .avi file locally from your harddrive and if so your computer restarts? I can't see how a codec update could do that.

I could however imagine that the scripting enabled in wmp could. Perhaps if you disable that.