Windows XP Tweaks (Network Internet -/- Other) [Release Date 09.08.2005]
Windows XP Tweaks will make Windows XP more responsive and less irritating by performing a serious of tweaks automatically. One change you will notice will be when you re-launch memory intensive programs.

AllTweaks Manager (System Utilities -/- Registry Tools) [Release Date 07.06.2005]
AllTweaks Manager tunes your system with just a mouse click! It contains a wide variety of tweaks that customize your workspace, secure your system, boost performance, increase privacy and do a lot of other tunings and improvements.

TweakSEC (Security Privacy -/- Other) [Release Date 19.05.2001]
Powerful Windows 9x/Me/NT/2000 security configuration and administration tool. TweakSEC can protect your system from incautious and malicious users as well as from anybody who could accidentally make harmful or irritating system configuration changes