RegRepair 2000 

Fix IOS errors, finds and removes duplicate fonts, registers avalable fonts, cleans and compacts the Registry
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WinClean 

WinClean is a smart and safe tool that boosts your computer efficiency and productivity. It searches the hard drives for junk files, scan the registry and delete broken shortcuts and gives control over startup applications.
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FixRegistryError 

FixRegistryError undertakes complete cleaning of Windows Registry and hard drive, fixes inconsistencies in Registry and files. Optimizes your system, increase OS stability and speeds up your softwares by maintaining Registry Integrity
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AppPaths 2000 

AppPaths is a small Control Panel extension that will allow you to edit various startup settings defined in the MS Windows System Registry. AppPaths includes facilities to modify the startup (Run) settings found in the MS Windows System Registry.
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RegMedic 

RegMedic can fix a corrupted Registry or install a new one, even when Windows cannot. This means no more formatting, no more reinstalling Windows. Fix all those little annoying non-function problems in Windows.
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NT Registry Drill 

The Registry Drill is the most in-depth Registry utility. Going through the Registry character by character searching for any possible errors.
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