Registry Cleaning

[nephalim]

Is there a safe effective program for doing this? (WinXP)

EDIT: I also want to clean up whatever unused/temp/cache files that windows is known for making stockpiles of (other than the simple temp folder, temporary internet files/cookies/history, recent files list.) Any recommendations on this would be nice, too.

 

[Allnatural]

I've often used RegCleaner. Hasn't borked my system yet.

 

[SurfPA]

Ashampoo WinOptimizer Suite is pretty good. It has different modules for cleaning the registry, cleaning the hard drive, tuning your internet connnection, even deleting redundant DLL's on your computer!