PC Error Eliminator
PC Error Eliminator search your harddrive fixing various types of errors to supercharge your PC's performance and stability. It fixes PC problems that cause errors, crashing, slowness, instability and prevents them from happening again. It is diagnostics tool, identify the precise problems in... Be it a businessman who wants Windows optimized for the applications he/she uses daily, a home user who wants to improve computer performance, speed and stability and postpone the purchase of a new machine, a network administrator/computer consultant who investigates and corrects performance...
http://www.pimasoft.com/downloads/pcmaxsoftware/PCErrorEliminator.exe - 676Kb - Download - Screenshot

Advanced Windows Optimizer
Advanced Windows Optimizer is an award winning collection of tools to optimize and speedup your system performance. it contains utilities to clean registry, temporary files on your disks, erase your application and internet browser history, cache, cookies and more. ... the built-in scheduled task manager allows you to schedule the cleaning tasks that take place automatically, other features include secure file deletion, shred recycle bin, application protection, split and rejoin files, backup and restore the Windows Registry, remove unsafe BHOs, and much more.
http://www.gogsoft.com/downloads/awoinstall.exe - 3Mb - Download - Screenshot

WinRescue NT
Four Tools in One: Crash Fixer, RegPack, File Backup, and Troubleshooter. WinRescue protects your computer from crashes. Don't spend hours reinstalling Windows NT, restore in minutes with WinRescue NT. Defrag the Registry with RegPack. Backup the registry, important files, and any other files... RegPack defrags (removes blanks and rebuilds) the Registry. ... File Backup allows the Registry, default files, and any or all files to be backed up. ... Without the RegPack process, the registry will never get smaller.
http://regvac.com/wnrsqntz.exe - 961Kb - Download - Screenshot

WinRescue XP
Four Tools in One: Crash Fixer, RegPack, File Backup, and Troubleshooter. WinRescue protects your computer from crashes. Don't spend hours reinstalling Windows XP, restore in minutes with WinRescue XP. Defrag the Registry with RegPack. Backup the registry, important files, and any other files... RegPack defrags (removes blanks and rebuilds) the Registry. ... File Backup allows the Registry, default files, and any or all files to be backed up. ... Without the RegPack process, the registry will never get smaller.
http://regvac.com/wnrsqxpz.exe - 961Kb - Download - Screenshot

Proactive Password Auditor
Proactive Password Auditor is a password security test tool that's designed to allow Windows NT, Windows 2000, Windows XP and and Windows Server 2003-based systems administrators to identify and close security holes in their networks. Proactive Password Auditor helps secure networks by executing... The software supports a few different methods of obtaining password hashes for further attack/audit: from dump files (generated by 3rd party tools like pwdump/pwdump2/pwdump3), Registry of local computer, binary Registry files (SAM and SYSTEM), memory of local computer, and memory of remote...
http://www.elcomsoft.com/download/ppa.zip - 2Mb - Download - Screenshot

System Purifier
Jitbit System Purifier is an all-in-one file shredder, privacy eraser, disk cleaner and registry optimizer. "FILE SHREDDER" AKA "file eraser" securely deletes files from your hard disk. Files erased with System Purifier are physically deleted and cannot be recovered or "undeleted" with disk... "REGISTRY TOOLS" - start-up programs and software list. ... Improve your system performance by removing unnecessary start-up programs from the registry and editing the registered software list so you could remove hidden traces of any software that you know you had uninstalled long time ago.
http://www.jitbit.com/files/SystemPurifierSetup.zip - 1Mb - Download - Screenshot

OCXTS
This is a small utility to help in the diagnosis of OCX installation/registration problems, use it during the development cycle or as a tool to diagnose problems once you've shipped your control to a customer site. Reports System, Version, Registry and Dependent DLLs.
http://www.codestone.ltd.uk/software/bin/ocxts/ocxts.exe - 171Kb - Download

WinRescue 2000
Four Tools in One: Crash Fixer, RegPack, File Backup, and Troubleshooter. WinRescue protects your computer from crashes. Don't spend hours reinstalling Windows 2000, restore in minutes with WinRescue 2000. Defrag the Registry with RegPack. Backup the registry, important files, and any other... RegPack defrags (removes blanks and rebuilds) the Registry. ... File Backup allows the Registry, default files, and any or all files to be backed up. ... Without the RegPack process, the registry will never get smaller.
http://regvac.com/wnrsq2kz.exe - 960Kb - Download - Screenshot

Cleaner Kit
Cleaner Kit is a bundle of powerful tools for cleaning and optimization of your system. Various programs of the Cleaner Kit are able to monitor your systen registry and clean it of obsolete and invalid entries, free your disk space by removing unnecessary duplicate files, protect your privacy by... Programs Included: Registry Analyst, Clone Hunter, Internet Trail Remover + 3 additional functions to provide you a maximum control over your system. ... Cleaner Kit also includes several additional functions, that will remove unnecessary temporary files on your disk, check and repair a link...
http://yavsoft.com/downloads/cleanersetup.exe - 1Mb - Download - Screenshot

RegCure
RegCure, the Advanced Registry Cleaner. Windows Errors Have Met Their Match! Developed to utilize the most current technology in registry cleaning, RegCure is the most advanced prevention and maintenance tool available. Offering the most comprehensive feature set on the market and free customer... REGCURE FEATURE LIST - Automatic/Manual Removal - Shows scan progress - Back-up Registry - Built in scheduler - Compress or Defrag Registry - Manage/Cleanup Startup Programs - Scans for Invalid Program shortcuts - Removes Duplicate files - Deletes empty registry Keys - Checks invalid Class Keys -...
http://urlcut.com/regcure.exe - 966Kb - Download - Screenshot