1)   A1Click Ultra PC Cleaner 1.01.51
Use Clean PC, Remove Tracks, or Do-it-yourself Setup to find internal clutter, hidden stores, junk files, and registry trash - 7 Bonus Cleaning Tools - uses A1Click Technology and No Remains Deletion - can run automatically at startup, keeps undo.

 2)   RegVac Registry Cleaner 5.01.03
RegVac - 6 cleaners, 3 editors, and 7 tools that get the registry sparkling clean, speed up your computer, avoid computer crashes, and repair Windows and applications. Stronger cleaning power than other registry cleaners. Forever Free updates.

 3)   A RegSweep 2008.069
A RegSweep is the latest in PC error diagnostic and repair. RegSweep can do a complete scan of your entire file system and registry in under 2 minutes! 100% Safe, Guaranteed, Best Performance in ALL Tests & Easiest to use. Scan Your PC For Free!

 4)   Registry Clean Up Diagnostic Elite 1.0
Registry Clean Up Diagnostic Elite helps the user decide if a registry clean up is right for them. Gives the user several options and tries to provide meaningful help as to whether or not a registry scan would be beneficial.

 5)   Registry Gear 2.1.2.618
Registry Gear is the next generation of Windows registry cleaning and optimization tool. It can give you a complete diagnosis of Windows registry, remove invalid registry entries, references and links, identify and repair the registry errors.

 6)   ErrorKiller registry scanner, registry 2.37
ErrorKiller fixes the most common registry issues, scan and search your computer for these errors and ErrorKiller will fix them. If you computer is unstable or very slow, do error messages appear out of nowhere.

 7)   Registry Easy Review 1.0
Registry Easy Review. Registry Easy is the latest windows registry windows repair tool that runs on all windows operating system from Win 98 to the latest windows Vista. Use a simple one click to scan and fix all obsolete registry entries and DLL

 8)   ErrorKiller registry scanner, cleaner 2.37
ErrorKiller fixes the most common registry issues, scan and search your computer for these errors and ErrorKiller will fix them. If you computer is unstable or very slow, do error messages appear out of nowhere.