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. ... Included are 85 Windows Tweaks and options to improve performance. ... This 32 bit program optimizes the performance for the tasks you do most often, while saving you the unnecessary CPU and RAM overhead.
http://www.xp32.com/dl/xp32.exe - 1Mb - Download - Screenshot

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

Optimizer Rx
Optimizing utility for enhancing the performance and security of PC's. Optimizer RX is a suite of 6 robust utilities that have been designed to increase the performance and security of PC's... Correcting problems, cleaning and fixing Windows registry, deleting unnecessary files, deleting traces... Your Default System and Browser Settings may not be optimized for best performance. ... Optimizer RX monitors your PC and fixes problems, giving you a smarter, better and faster computing experience; making Optimizer rx the ultimate solution for maintaining a PC's peak performance.
http://www.horizondatasys.com/file...OptimizerRX_Single_User_Setup.zip - 5Mb - 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. ... It can automatically Free-UP RAM if a critical amount of Free RAM is reached preventing your system's performance from being degraded.
http://www.releaseram.com/rram2k.exe - 2Mb - 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 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/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 94 security tweaks to really tighten up your system. ... XP Smoker Pro also includes a state-of-the-art Internet Optimizer that runs a series of tests to improve your Internet...
http://www.xp-smoker.com/downloads/xpspro.exe - 4Mb - Download - Screenshot

SpeedUpMyPC
The award-winning and leading software utility that automatically optimizes and maximizes the performance of all computers within minutes. Maximize Hardware Usage for Superior Performance Fine-tune your computer hardware with SpeedUpMyPC to run at peak efficiency without the headaches of... Optimise System Settings for Ultimate Speed Automatically tweak system and internet settings with SpeedUpMyPC to enjoy the true power and speed of your computer. ... Exceptionally Simple to Use Whether you are an expert or a novice, SpeedUpMyPC is exceptionally simple to use and does a superb job...
http://www.softcns.com/downloads/uniblue/speeduppc.exe - 72Kb - 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. ... It provides you with the tools to terminate and eliminate any program that may disrupt, damage, slowdown or crash your system.
http://www.lidownloads.com/demos/wintasksprotrial.exe - 4Mb - 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. ... System administrators who implement Diskeeper consistently see a drop in help desk calls, administrative time and workstation replacement costs. ... Install Diskeeper on your entire network, and keep your computers - and users - running at peak efficiency.
http://www1.execsoft.com/us_dk80_protr.exe - 1Mb - Download

TCS
This trends management program handles field data from one or more acquisition systems, or internal performance data from servers. It manages any kind of periodically updated value in a database, which can be reached by SQL query from the computer on which the program is being run. ... It can be useful also to follow the relevant parameters of a server to control and optimize the performances in peak activities periods, as can be a sustained alarms period in a supervision system. ... The daily, weekly, monthly and yearly graphics report, on selection, the arithmetic average or the weighted...
http://www.telsys.it/Download/TCS42Setup.exe - 8Mb - Download - Screenshot