1)   DTweak 3.14
Tweak a Myriad of Windows Vista Features and Enhance its Performance: With DTweak you can - defragment disks and registers, - clean file and registry sistems, - tune computer performance, - and much more...
Registry Utility, Security, Backup, Clean, Uninstal, Win, Maintain, Faster, Tune, Vista Windows,

 2)   XTweak 3.14
XTweak is an advanced tweaker and optimizing tool especialy designed for Windows XP/2003: With XTweak you can - defragment disks and registers, - clean file and registry sistems, - tune computer performance, - and much more...
Registry Utility, Security, Backup, Clean, Uninstal, Win, Maintain, Faster, Tune, Vista Windows,

 3)   Best Vista Tune 1.2
Best Vista Tune allows you to fine-tune your Windows Vista easily and safely. It gives your system the look you want, and optimizes its performance for the tasks you do most often, while cutting CPU and RAM expenses on the tasks you are.
Registry Utility, Security, Backup, Clean, Uninstal, Win, Maintain, Faster, Tune, Vista Windows,

 4)   Best Vista Tune Free 1.2
Best Vista Tune Free allows you to fine-tune your Windows Vista easily and safely. It gives your system the look you want, and optimizes its performance for the tasks you do most often, while cutting CPU and RAM expenses on the tasks you are.
Registry Utility, Security, Backup, Clean, Uninstal, Win, Maintain, Faster, Tune, Vista Windows,