XP32
If you currently work with Windows XP Professional or Windows XP Home Edition, then you will certainly value this advanced performance software which will tweak your system just the way you want it. XP32 allows you to fine-tune your Windows XP and Internet Explorer easily and safely. ... XP32 hides in your system tray and keeps Windows XP optimized for peak performance. ... There are no minimum hardware requirements: any PC running any version of Windows XP will support XP32. ... This 32 bit program optimizes the performance for the tasks you do most often, while saving you the unnecessary...
http://www.xp32.com/dl/xp32.exe - 1Mb - Download - Screenshot

Diskeeper Professional
It's a known fact: Fragmentation kills workstation performance and hammers user productivity. Disk fragmentation can begin to degrade performance in just a few hours. Manually defragmenting even a modest-sized network would require a small army. Fortunately, there is an answer: Diskeeper 8. ... Install Diskeeper on your entire network, and keep your computers - and users - running at peak efficiency. ... Diskeeper improves your users' efficiency and productivity by keeping their computers running as fast and stable as new, with virtually no administration.
http://www1.execsoft.com/us_dk80_protr.exe - 1Mb - Download

SANDRA Standard
SANDRA (System Analyzer Diagnostic and Reporting Assistant) is a set of system diagnostic and benchmarking tools designed to help you keep your computer running at peak performance. It provides diagnostic, benchmarking, and performance tune-ups for different hardware devices and subsystems,... The shareware version includes 50 modules, and 20 additional modules are included in the registered version. ... The latest version includes additional modules, CPU multimedia benchmarking, and network and memory bandwidth benchmarking.
http://www.3bsoftware.com/rd/downloads/sandra.html - 2Mb - Download - Screenshot

Memory Zipper Plus
You may or may not be an avid user of computer but you do encounter the problem of frequent shutdowns and computer crashes. You couldn? t leave your computer unattended. Here is the solution! Memory Zipper Plus optimizes memory management and the performance of your system operating on Windows... s integrated suite of functions can get your system running at peak performance levels. ... In addition to that, if you want to optimize system memory, improve core kernel performance or manage other performance tweaks, Memory Zipper Plus?
http://down1.systweak.com/memzip.zip - 717Kb - Download - Screenshot

Release RAM 2000/XP
Release RAM allows your computer to run faster and uses your RAM more efficiently. You can free up wasted RAM back to the CPU at any time allowing your system to have more memory available, so making program execution faster because as free memory it is ready and waiting. ... Release RAM runs in the background recovering and defraging RAM, recovering memory leaks, all helping to keep your system in peak condition. ... Contains a task manager where you can close applications and process which are running, and you can also set the CPU's priority on system processes.
http://www.releaseram.com/rram2k.exe - 2Mb - Download - Screenshot

WinTasks 5 Professional
The ultimate power utility software that arms users with a comprehensive set of tools to put them in full control of their computer. WinTasks 5. 0 Professional provides you with a wealth of information and a powerful set of tools that will help you enhance the protection against system security... 0 is the ultimate power utility that empowers you to optimize your computer and keep it running at peak performance while guarding against any attacks on your system. ... 0 Professional gives you detailed information about each and every process that is running.
http://www.lidownloads.com/demos/wintasksprotrial.exe - 4Mb - Download - Screenshot

XP Smoker
XP Smoker allows you to change various settings in the Windows Registry. These settings can improve the performance for your computer drastically. You can also stop and disable useless services in Windows XP. And in the end, you will reduce subsystem bottlenecks, increase application and boot... It is the simple and straightforward way to tweak your system to peak performance. ... XP Smoker is perfect for game enthusiasts, heavy surfers, and PC users on a budget. ... Whether you use a dialup, cable, DSL, or satellite connection, XP Smoker can increase your browsing speed by as much as 100%!
http://www.xp-smoker.com/downloads/xps.exe - 4Mb - Download - Screenshot

XP Smoker Pro
XP Smoker Pro allows you to change various settings in the Windows Registry. These settings can improve the performance for your computer drastically. You can also stop and disable useless services in Windows XP. And in the end, you will reduce subsystem bottlenecks, increase application and... It is the simple and straightforward way to tweak your system to peak performance. ... XP Smoker Pro also includes a state-of-the-art Internet Optimizer that runs a series of tests to improve your Internet connection for smoking-fast surfing no matter what connection speed you have!
http://www.xp-smoker.com/downloads/xpspro.exe - 4Mb - Download - Screenshot

System Cleaner
Every day your hard drive gets littered with file fragments and debris you can't see. Unwanted files from daily usage and internet surfing can build up over time, slowing down your system's performance and leaving a trail of your web browsing habits for anyone to see! ... - Delete junk and obsolete files Safely scan and remove many different garbage files on your computer, freeing up extra disk space and keeping your system at peak performance. ... - Speed up general system performance In addition to occupying valuable space, all this garbage also slows down your system - running Windows...
http://dl1.pointstone.com/download...temcleaner/SystemCleanerSetup.exe - 1Mb - Download - Screenshot

Release RAM Pro
Release RAM allows your computer to run faster and uses your RAM more efficiently. You can free up wasted RAM back to the CPU at any time allowing your system to have more memory available, so making program execution faster because as free memory it is ready and waiting. ... It can automatically Free-UP RAM if a critical amount of Free RAM is reached preventing your system's performance from being degraded. ... Release RAM runs in the background recovering and defraging RAM, recovering memory leaks, all helping to keep your system in peak condition.
http://www.releaseram.com/rram2.exe - 2Mb - Download - Screenshot