Registry Defragmentation
Registry Defragmentation is a small utility that does gigantic improvements in computer performance. Registry is the core of any operating system and it is the proper functioning registry that determines how fast the computer boots up, launches applications and carries out commands. ... As a result of regular registry defragmentation, computer users get a more stable operating system, shorter application/system response time, and the most optimal linear registry structure. ... After a single run of Registry Defragmentation, the computer speed increases up to 100% and the computer itself...
http://www.elcor.net/download/rdefrag_pad.exe - 2Mb - Download - Screenshot

1st Registry Repair
1st Registry Repair is a utility to optimize your system registry by finding and removing errors and invalid entries. The registry is a heart and soul of any Windows system. It contains information that controls how your system appears and how it behaves. ... 1st Registry Repair uses a highly intelligent engine to scan your computers registry for invalid registry entries. ... Problems with the Windows Registry are a common cause of Windows crashes and error messages. ... It offers an integrated backup feature, so you can restore the registry in case your cleanup operations cause any problems.
http://www.elongsoft.com/download/FRRSetup.exe - 980Kb - Download - Screenshot

Registry Cleaner/Optimizer
PAL Registry Cleaner/Optimizer is a simple registry cleaner for Windows that safely cleans and repairs registry problems with a single click. By regularly cleaning your system's registry it becomes more stable, your computer will run faster, error messages will be reduced or eliminated and your...
http://www.palsol.com/downloads/RegistryCleaner1.exe - 6Mb - Download - Screenshot

XP Registry Cleaner
The Windows registry is a database repository for information about a computer's configuration. The registry keep growing when you use Windows. As it does so, it attracts obsolete and unnecessary information, and gradually becomes cluttered and fragmented. ... XP Registry Cleaner scans the Windows registry and finds incorrect or obsolete information in the registry. ... The backup/restore function of the tool let you backup your whole Windows Registry so you can use it to restore the registry to the current status in case you encounter some system failure.
http://www.xp-tools.com/download/xpregistrycleaner.exe - 658Kb - Download - Screenshot

RegDoctor
Is your computer running slow? Are you experiencing computer crashes or windows error messages? Do you want to improve your system performance and stability? If you are answering yes, then you very likely need to clean up your Windows registry. Registry problems are the common cause of Windows... RegDoctor also offers a Restore feature to create registry backup files, giving you the capability to safely undo any registry changes. ... RegDoctor uses an intelligent, high-performance detection engine to accurately identify missing and invalid references in your Windows registry.
http://www.itcompany.com/regdocins.exe - 2Mb - Download - Screenshot

Eusing Free Registry Cleaner
Eusing Free Registry Cleaner is a free registry repair software that allows you to safely clean and repair registry problems with a few simple mouse clicks. The Windows Registry is a crucial part of your PC's operation system. Problems with the Windows Registry are a common cause of Windows... This will significantly increase the Registry size and slow down your computer, because Windows will need more time to load, search, and read data from the Registry. ... Eusing Free Registry Cleaner will scans your Windows registry for invalid or obsolete information and provide a list of the errors...
http://www.qwerks.com/download/8811/EFRCSetup.exe - 830Kb - Download - Screenshot

Registry First Aid
New 5. 0 - It's faster, finds more problems than others and is even easier to use! People's Choice Winner 2003 Shareware Industry Conference! Tired of Windows crashing? Sick of having software lock up on you or taking forever to load? The problem could be all of those incorrect registry entries... Registry First Aid allows you to: - find invalid file/folder references in Windows 9x/NT/2000/ME/XP registry; - select drives and paths where to search registry referenced files/folders; - select found matches to make corrections to invalid registry entries; - delete incorrect registry references...
http://registry-repair-software.com/download/rfasetup.exe - 3Mb - Download - Screenshot

RegCompact.NET
RegCompact. NET will enhance your systems performance by optimizing the arrangement of data stored in your systems registry hives. During the normal operation of a Windows system, registry data is constantly being written to and removed from the registry. ... NET solves the problem of registry fragmentation and large size by rewriting the registry hives into new files which are completely optimised and often much smaller. ... Your computer is restarted after the registry hives are compacted and during system startup the old, fragmented files are replaced with the newly generated and...
http://www.experimentalscene.com/download.php?view.1 - 113Kb - Download - Screenshot

RegistryBot
RegistryBot is a Windows Registry Cleaner, Kernel32 DLL Error Message Fix and Access Violation Repair Software. Our FREE Scan will easily finds the cause of errors that result in almost all computer problems! RegistryBot will save you from reformatting your entire computer! ... When these entries are removed from your registry, your computer? ... We have isolated the most common registry issues and our free scan will search your computer for these errors and let you know where they are and what problems they may be causing.
http://shurl.org/DL-RegistryBot.exe - 2Mb - Download - Screenshot

PC Doctor by PCSecurityShield.com
Is your computer running slow? Does it crash? If so, then you have errors in your registry. Don' worry, PC DOCTOR is here to help. PC DOCTOR will scan your entire computer and remove errors, speed up your pc and stop crashes! PC DOCTOR comes with 1 year free tech support and upgdates. ... By using a registry cleaner regularly and fixing your registry your system should not only be more stable but it will also help Windows and your software run faster. ... With a few easy steps, PCDoctor by PCSecurityShield will scan your entire registry for any invalid entries and provide a list of the...
http://downloads.pcsecurityshield.com/software/pcdoctorinstaller4.exe - 0b - Download - Screenshot