The mother of all tweaker
X-Setup Pro is a so-called "tweaker" program; it allows you to change settings that are normally hidden deeply in Windows fast and easily. There are many hidden settings in Windows as well as in a lot of other programs and normally you can't change them.
* Supports all Windows operating systems up to Windows 2003
* Nearly 1.800 hidden functions can be controlled
* Easy to use
* Step-by-step support with wizards
* XML file format
* All recorded changes can be applied to other machines
* Extendible with additional plugins and wizards.
* With plugins for Microsoft Office, Adobe Acrobat, Internet Explorer, etc.
* Automatic Updates
* Loading a different user or computer registry.
* For use on a bootable CD and fixing an non-working computer (BartPE)
* Undo changes on any OS with Restore Log
* Can be used from script files or other programs
* SDK freely available
more info: *ttp://x-setup.net/
file size: 3,12 MB
p.s.: this is a MUST