Tweak Tool for Win9x through Windows XP
Those of you who are real Windows XP tweakers and tuners are always looking for something to help you take total control over your computer. If you've tried programs like TweakUI then you're ready to move up to the next level. Try out TweakAll if you want to control hundreds of settings that would otherwise require you to enter the Registry and suffer the risk of making a typo! I've been playing with it on my Windows XP Pro computer and it's the good stuff. Download it free at:
http://www.codeforge.co.uk/tweakall.php