41)   HS WinPerfect 6.17
Windows system optimizer which checks and fixes any hard-disk problems, cleans hard-disk, system registry, finds duplicates, optimizes memory, tunes-up system settings, accelerates internet connection, improves cpu usage, manages security
License:Shareware, 29 USD to buy Size:4.44 MB

 42)   Free Up Ram 1.15
Free Up Ram is a simple, yet robust memory optimizer. Free Up Ram was designed to allow you to quickly free up physical memory taken up or used by applications and processes no longer in use by your computer.
License:Shareware, 8.88 USD to buy Size:1.5 MB

 43)   OptimizeXP Hardware Edition 1.0
Optimize and tweak your Windows XP Hardware settings to optimize your Windows XP environment. OptimizeXP comes with over 20 tweaks and optimizations.
License:Freeware, 0.00 USD to buy Size:0.69 MB

 44)   Windows XP Tweaks 1.0
Windows XP Tweaks will make Windows XP more responsive and less irritating by performing a serious of tweaks automatically. One change you will notice will be when you re-launch memory intensive programs.
License:Freeware, 0 USD to buy Size:0.17 MB

 45)   DOSINTEL PC Fix 6.0
With a few easy steps DOSINTEL PC-Fix, a two in one software, will scan the entire computer for any invalid entries and provide a list of errors found, so the user can choose to selectively or automatically clean any item or repair them all.
License:Shareware, 24.99 USD to buy Size:3.61 MB

 46)   Tweak PDF 1.33
The initial view of a PDF document can be tweaked. Is it a secret of PDF file? Well, we are not sure about this, and very few pieces of software can tweak PDF files.
License:Freeware, USD to buy Size:0.31 MB

 47)   PC Doctor by PCSecurityShield.com 2005
Is your computer running slow? Does it crash? If so, then you have errors in your registry. Don' worry, PC DOCTOR is here to help. PC DOCTOR will scan your entire computer and remove errors, speed up your pc and stop crashes!
License:Shareware, 29.99 USD to buy Size:0 MB

 48)   Shutdown Lock 1.5
Get Shutdown Lock and enable hibernate and stand by feature in application, like FlashGet, Use Windows XP fast user switching feature more safety, prevent unexpected system shutdowns or restarts that could immense and sensitive data loss.
License:Shareware, 14.95 USD to buy Size:0.38 MB

 49)   Prio 1.6
Utility for saving the priority of applications and interface enhancements for the standard Task Manager.Saving the priority of each process.Detecting the full path to the executable file.Quick access to system services.
License:Shareware, 19.95 USD to buy Size:0.22 MB

 50)   98/ME Smoker 1.2
A tweaking utility to get every last drop of performance from your Windows 98/Me driven computer system.
License:Freeware, 0.00 USD to buy Size:3.16 MB

 51)   WinXP Manager 5.2.6
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.
License:Shareware, 39.95 USD to buy Size:5.30 MB

 52)   ProcTune Pro 6.0.3.515
ProcTune - An innovation in development of high-efficiency desktop and server computing systems. Having installed this system utility on a desktop computer or server, the productivity of your software will increase with many percents, avoiding extra
License:Shareware, 25 USD to buy Size:1.86 MB

 53)   PcBoost 3.10.15.2007b
PcBoost is a tool for all that allows you to modify your computers settings to increase performance and speed. No modifications to your hardware are made and all adjustments and settings are done in an easy to use interface.
License:Shareware, 12.99 USD to buy Size:0.96 MB

 54)   PcMedik 6.10.15.2007b
PcMedik is a tool for all that allows you to modify your computers settings to increase performance and prevent crashes. No modifications to your hardware are made and all adjustments and settings are done in an easy to use interface.
License:Shareware, 11.99 USD to buy Size:0.84 MB

 55)   Control TOTAL 5.0
Multifunctional tweak: optimizing and expansion of Windows XP functiona Is the unique set of XP utilities. More than 100 additional possibilities Control TOTAL ? is widening of your Windows XP function possibilities.
License:Shareware, 19 USD to buy Size:0.76 MB

 56)   Privacy Guard 5.0
Delete history, cookies and all traces of Internet and computer activity
License:Shareware, 39.95 USD to buy Size:1.15 MB

 57)   Ram Magic 1.0
Ram Magic makes your PC run smoother and faster and uses your computer memory more efficiently.
License:Shareware, 19.95 USD to buy Size:0.85 MB

 58)   Ashampoo Magical Optimizer 1.20
Clean the whole system: release the brake of your computer with only one mouse click!
License:Shareware, 12.99 USD to buy Size:4.70 MB

 59)   WinCleaner Memory Optimizer 5.0
Cleans, optimizes and frees your computer's memory. Memory is vital to the performance of your computer and that is why this software can help boost your system's performance. WinCleaner Memory Optimizer is set-and-forget software.
License:Freeware, 0.00 USD to buy Size:0.79 MB

 60)   Vista Manager 1.4.2
All-in-One utility to optimize, tweak, clean up Windows Vista. It bundles more than 30 different utilities in one! Get access to hundreds of hidden options, clean registry and junk files, tune up Vista boot menu and many other utilities.
License:Shareware, 39.95 USD to buy Size:5.44 MB