Registry Defragmentation
Registry Defragmentation is a small utility that does gigantic improvements in computer performance. Registry is the core of any operating system and it is the proper functioning registry that determines how fast the computer boots up, launches applications and carries out commands. ... This and many other registry-related problems can be easily fixed by Registry Defragmentation. ... As a result of regular registry defragmentation, computer users get a more stable operating system, shorter application/system response time, and the most optimal linear registry structure.
http://www.elcor.net/download/rdefrag_pad.exe - 2Mb - Download - Screenshot

Rapid File Defragmentor
Rapid File Defragmentor is the fastest defragmentation program allowing you to defragment selected files and directories. Regular defragmentation increases the overall performance of your system dramatically. The key advantage of the Rapid File Defragmentor is the ability to group files and... * Defragmentation scheduler allows to set date and time for every profile * User-friendly interface doesn't require a specific knowledge (look at screenshots) * Possibility to move files to the end of the disk (for rarely used files) and to the start of the disk (most often used files) increases the...
http://www.rapidfd.com/download/rapid_install.exe - 705Kb - Download - Screenshot

Diskeeper Professional Premier Edition
Along with the high-speed defragmentation features in Diskeeper 10 Professional Edition, Professional Premier Edition adds the proprietary Intelligent File Access Acceleration Sequencing Technology (I-FAAST™). I-FAAST is a technology breakthrough that allows Diskeeper to intelligently organize... During its specialized defragmentation process, it sequences the files to give you a burst of speed, up to 80%, for the files you access most. ... Gamers, Multimedia gurus, and Power Users of the world; rejoice!
http://files.diskeeper.com/trial/D...rofessionalPremier_TW_30day_x.exe - 16Mb - Download - Screenshot

WinASO RegDefrag
The Windows Regsitry grows as data is added to it, but it never shrinks when data is removed. A bloated registry with a lot of empty space in it can slow down the boot time as well as performance as a whole. "WinASO RegDefrag" will rebuild and re-index your registry to eliminate structural... After defragmentation your registry will acquire linear structure which will reduce application response time and registry access time. ... "WinASO RegDefrag" performs physical defragmentation of the Windows registry file.
http://www.winaso.com/submit/rd/WinASORD.exe - 1Mb - Download - Screenshot

hsDefragSaver
Increase performance by defragmenting your hard-drive. hsDefragSaver allows automated defragmentation of one or more drives. A fragmentation threshold is used to determine when to defragment. hsDefragSaver runs as a screen-saver while your computer is idle and you are away. ... An optional instant messenger style summary window reports the results of the analysis and defragmentation. ... Supports multiple monitors (built-in screensaver) and multiple drives. ... This automated solution allows you to maintain/improve system performance automatically.
http://www.hachisoft.com/downloads/hsDefragSaver/hsDefragSaver.exe - 2Mb - Download - Screenshot

Defrag for Windows
What is new in this version: - Support for Windows 2000 added. - Selective defragmentation of drives now possible. - Hiberfile can now be removed prior to defragmentation. - When tasks are done the user may be notified by a message box and/or sound. - Scandisk may be omitted prior to... 5. ... Running Windows Defrag Disk utility. ... 6. ... Running Windows Scandisk utility. ... 3. ... Disabling and removing the paging file. ... Restarting the running processes. ... Disabling and removing the hiber file 4.
http://www.pcmesh.com/dwtrial.exe - 635Kb - Download - Screenshot

SpeeDefrag
SpeeDefrag is the exclusive freeware program which optimizes windows xp defrag It restart your computer which refreshes the ram and then load just the defrag. exe program. This impose min load on system and therefore defragmentation speed is increased. ... so download and enjoy. ... This program will also turn off your computer automatically once defrag is over.
http://www.vcsoftwares.com/SpeeDefrag.html - 1Mb - Download - Screenshot

Diskeeper Trialware for Networks
Fragmentation causes frustrating slowdowns, excruciatingly long boot times, and catastrophic system crashes. Your company is losing countless dollars to fragmentation in the form of lost productivity, help desk traffic and premature replacement of troublesome systems. ... Daily defragmentation is the solution. ... All you do is "Set It and Forget It"®! ... Diskeeper simply puts an end to fragmentation – period. ... That's why you need Diskeeper®, the Number One Automatic Defragmenter™ with over 16 million licenses sold.
http://www1.execsoft.com/trialware/Diskeeper9_Networks_TW_30day.exe - 16Mb - Download - Screenshot

Diskeeper Professional Edition
Disk fragmentation causes crashes, slowdowns, freeze-ups and even total system failures. Manual defragmentation just isn't practical-it takes too long. Diskeeper is the number one automatic defragmenter that runs undetectably in the background and makes the problems of fragmentation go away... Your systems can perform like new again-get Diskeeper 9 and see! ... Diskeeper is packed with features and new technology that keep your systems running at top speed and protect critical system files, ensuring like-new levels of performance.
http://www1.execsoft.com/trialware...keeper9_Professional_TW_30day.exe - 16Mb - Download - Screenshot

Diskeeper Home Edition
Diskeeper 9 Home Edition is the most cost-effective way to keep your PC running like it did when it was new, without the need for slow, time-consuming manual defragmentation. Diskeeper 9 Home Edition goes to work as soon as you install it, running in the background to restore and maintain your... If you prefer a “hands-off” approach, you need do nothing after installation; it will automatically go to work in “Set It and Forget It” mode. ... Diskeeper 9 Home Edition can be fully configured through its intuitive, easy-to-use interface.
http://www1.execsoft.com/trialware/Diskeeper9_Combined_TW_15day.exe - 16Mb - Download - Screenshot