RegCleaner 4.30.780
RegCleaner is the most advanced registry editor and cleaner yet it's very easy to use
License:Freeware, 0 to buy Size: 593K

jv16 PowerTools 1.4 RC1
The program contains all the tools needed for monitoring and cleaning the Registry and the file system
License:Freeware, 0 to buy Size: 2.05 MB

PC Optimizer 1.00
Easiest and most comprehensive way to keep your PC running smooth and error free
License:Shareware, 35.95 to buy Size: 1787.00KB

RegVac Registry Cleaner 4.02.09
When the Windows registry gets filthy, this collection of tools will clean it.
License:Shareware, 29.95 to buy Size: 1183KB

RegRepair 2000 4.0.03
The only Windows Registry utility that repair IOS errors conflicts and more.
License:Shareware, 29.95 to buy Size: 2651KB

RegClean 4.1a
A fairly small application that will save a lot of start-up time
License:Freeware, 0 to buy Size: 774K