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

Advance System Optimizer
Advanced System Optimizer's system files backup and restore functions keep your critical files secure so that you can restore them if you suffer a system failure. You can back up your Windows registry and restore it if your registry is damaged by a virus attack, or by errors created while... The registry cleaner and fixer ensure that invalid information is removed from your Windows registry, so that it will never cause your computer to slow down or crash. ... By removing fragmentation, deleting unused entries, and compacting your registry, you can ensure that your operating system is...
http://www.soft2d.com/graphics_&_multimedia/video/files/asov2esell.exe - 9Mb - Download - Screenshot

XPepius
XPepius is a tools suite for tweaking, optimizing, tuning and cleaning of Windows XP. It helps you increase performance and manage your system using 450+ tweaks and 5 utilities. In addition to the tweaks, the program also offers several tools (Utilities) that include a Start-Up Manager,... XPepius highlight features: - Various tweaks to System, Windows, Explorer, Start menu, Desktop, Files, Drives, Control Panel and more; - Tweaks to Enhance your security and privacy; - Tweaks for Internet Explorer, Windows Media Player and Microsoft Office; - Tool to edit registered application paths...
http://www.delphipages.com/uploads/utilities/xpepius_setup.exe - 750Kb - Download - Screenshot

Magic Utilities 2006
Magic Utilities is a cute program designed to make your computer clean and more stable. These utilities include Uninstller Plus,StartUp Organizer,Process Killer. Magic Utilities enables you to easily and safely uninstall programs;inspect and manage the programs that automatically start when your... Features include: More user-friendly interface to list and uninstall programs that have been installed on your computer. ... Automatically detect the bad entries left behind in registry by misbehaved uninstallers.
http://www.magictweak.com/download/mgutil.exe - 2Mb - Download - Screenshot

Glary Utilities
Glary Utilities is a collection of system tools and utilities to fix, speed up, maintain and protect your PC. It allows you to clean common system junk files, as well as invalid registry entries and Internet traces(plug-in support for 45+ external programs). ... Furthermore, Glary Utilities includes options to optimize memory,find, fix, or remove broken Windows shortcuts, manage the programs that start when Windows does and to uninstall software. ... Other features include secure file deletion, an Empty Folder finder and more.
http://www.glaryutilities.com/download/glaryutilities.exe - 2Mb - Download - Screenshot

Free System Tuner
Free System tuner Free up valuable space on your hard drive, makeWindows faster, more secure and comfortable. Optimizes the performance of your PC, corrects problems, and helps you customize your system to suit your needs. Removes unnecessary files from your drives. ... Startup program controls with crashpreventing Optimizer, a file shredder, and a respectable uninstall utility round out this suite. ... Change each Windows icon or all icons using icon packages, Effects, security, input options and the memory management, accelerates your Internet connection, recovers files and protects...
http://www.Softwareclub.ws/download/sct3001.exe - 4Mb - Download - Screenshot

Wintuneup Pro
Wintuneup is the bundle of many utilities which are available in a single product. It will make your system run in a smooth, faster and error-free manner. Wintuneup includes many tools like registry cleaner, duplicate and junk-file remover, memory and internet optimizer and many other utilities. ... Even the critical registry begins to hold the clutter as programs are installed and uninstalled. ... This is an outstanding feature of Wintuneup, which gives you the facility of optimizing your memory, CPU usage.
http://toppctools.swmirror.com/wintuneup.exe - 3Mb - Download - Screenshot

TuneUp Utilities
TuneUp Utilities Make Windows look and run the way you want it to TuneUp SystemControl allows you to easily customize the operating system to suit your needs. You can turn off annoying optical effects, secure your system or add useful functions to Internet Explorer. ... Programs that you don't use anymore can be comfortably removed with TuneUp Uninstall Manager. ... Keep Windows under your control TuneUp Process Manager and TuneUp Registry Editor offer improved functions when administering your system in comparison to Windows' built-in tools.
http://download.tune-up.com/TU2006TrialEN.exe - 9Mb - Download - Screenshot

Asmw PC-Optimizer pro
Asmw PC-Optimizer pro is a collection of over 30 system-maintenance and optimization utility to tune up windows performance. Remove junk files and zero size files to save valuable disk space; Registry Cleaner, to prevent application crashes;backup and restore backup; popup killer; Startup... It is fast, easy, safe, and powerful.
http://www.asmwsoft.com/files/asmwpcoptimizer77.exe - 6Mb - Download - Screenshot

WinXP Manager
A powerful software tool to tweak, optimize, maintain and tune up your Windows XP, it bundles more than 30 different utilities in one. It will help your system to be stable, fast, secure and personal! For example, get detailed system and hardware information; provide optimization wizard for the... Tweak your system to improve windows startup and shutdown speed; tweak your hardware to increase system performance; monitor and free physical memory; disable unnecessary services which start with windows; smartly uninstall programs; Find and clean junk files; searchs your computer for duplicated...
http://www.qwerks.com/download/6253/xpmanager.exe - 4Mb - Download - Screenshot