Windows XP Tweak Guide
 

For those serious techies that like to tinker beneath the hood (and you know you do). This guide is for you. Got an XP box that you want to run lean and mean? Like reg hacking and having absolute control over your OS?

Put the reins on your XP Box.

jeese - how long does it take to accumulate that much knowledge of windows?

black viper's guide is better imo...