1)   WinXP Manager 5.1.8
All-in-One utility to optimize, tweak, clean up Windows XP. It bundles more than 30 different utilities in one! Get access to hundreds of hidden options, clean registry and junk files, speed network, uninstall smartly and many other utilities.

 2)   Advanced Registry Optimzier 1.26
It is the easiest way to keep your PC running cleaner, faster and error free.Fix PC problems and prevent them from happening again. Comes with 1.System Files Backup and Restore 2.Registry Cleaner and Optimizer 3.Registry Defragger and Optimizer

 3)   DefragMentor Premium 2.0
Powerful file defragmentation product, which improves performance of your PC or server by defragmenting large and system files. Main features: wizard-like GUI, defragmentation job scheduler, boot-time and screen saver defrag, long-term statistics.

 4)   MindSoft Utilities XP 2009.25
Mindsoft Utilities XP can be used by computer professionals as well as amateurs that have limited knowledge of these types of tools. The interface allows for easy navigation and high efficiency.

 5)   System Mechanic Professional 8
Make your PC run like new! Protect your data from malware and intruders. System Mechanic Pro combines 6 powerful products to optimize your registry, defragment drives and memory, speed up your computer, scrub personal data, and remove spyware.

 6)   SysGraph 1.1
Sysgraph is a program that monitors your network speed, RAM and CPU usage. It can optimize memory usage to make other programs run faster. It runs without installation so it keeps your system clean from unnecessary registry entries.

 7)   O&O Defrag Professional Edition 10
O&O Defrag 10 Professional unlocks the hidden Performance of your computer. This software will optimize your hard disk, securely repacking fragmented files together for more efficiency.

 8)   Vista - XP Repair Pro 4.1.145
XP Repair Pro Scans and Repairs over 60,000 Errors for Windows XP & Vista. Enhance, Optimize & Defragment your PC. XP Repair Pro is a one of a kind system utility, and no other repair tool operates as efficiently, and thoroughly. - FREE DOWNLOAD

 9)   SpeedUpMyPC 4
SpeedUpMyPC, Uniblue's award-winning speed up computer solution, lets you monitor and control all PC resources with easy, one click instructions. System settings, internet usage, disk clutter, RAM and CPU are automatically scanned and cleaned.

 10)   Windows Registry Repair Pro 4.2
Registry Repair Pro scans the Windows registry for invalid or obsolete information in the registry. When you fix this information it will make your PC run faster and will make your PC error free.

 11)   Abexo Defragmenter Lite 6.1
Does defragmenting your hard disk take too long? Did you know that running programs can neither be defragmented nor be moved? Did you know that besides disk defragmentation, a disk optimization would tremendously speed up computer performance?

 12)   SuperRam 6.5.31.2010
SuperRam increases computer performance by freeing wasted memory back to your computer. By optimizing memory utilization your computer will operate at stable speeds and never run out of memory. SuperRam allows you take control of your computer.

 13)   System Mechanic 8
Make your PC run like new. System and registry clutter will degrade your computer's performance. System Mechanic has over 40 tuneup tools to remove junk files, defrag drives, boost your internet connection, and delete spyware from your system.

 14)   Abexo Free Registry Cleaner 1.1
Abexo Free Registry Cleaner is the freeware edition of Abexo Registry Cleaner. This software aims at making your computer run faster by cleaning Windows system registry.

 15)   PC Health Optimizer 2.0
PC Health Optimizer is a unique set of over 20 maintenance tools to improve system performance and security. This suite of utilities will identify and eliminate problems which slow your system. Also includes anti-virus and anti-spyware protection.

 16)   Abexo Defragmenter Pro 6.1
Does defragmenting your hard disk take too long? Did you know that running programs can neither be defragmented nor be moved? Did you know that besides disk defragmentation, a disk optimization would tremendously speed up computer performance?

 17)   Auslogics Disk Defrag 3.1.4
Disk Defrag will speed up your computer by optimizing file system. It can defragment files, consolidate free space and move system files to the faster part of the disk. With Disk Defrag you'll get the maximum out of your hard drive performance.

 18)   Diskeeper 2008 Pro Premier 2008
Diskeeper 2008 Pro Premier edition provides peak performance for power users and workstation computing, delivering the ultimate in reliability to those who need it most. Shift your system into high gear with Diskeeper 2008 Pro Premier.

 19)   Defrag for Windows 4.0
PCMesh <a href="http://www.pcmesh.com/defrag.htm" title="disk defrag">disk defrag</a> is an easy-to-use complete defragmentation utility to make your Windows run faster by defragmenting and optimizing the hard disk.

 20)   Abexo Memory Defragmenter 1.1.1
Abexo Memory Defragmenter, also called RAM defragmenter, RAM/memory booster, RAM/memory optimizer, etc. is a software to free up wasted RAM and report the free memory.Also prevents Windows crashes.