HS WinPerfect 

Windows system optimizer which cleans hard-disk and system registry, finds duplicate files, optimizes memory, tunes-up system specific settings, accelerates internet connection, improves cpu usage, manages security and backup issues and uninstalls so
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eConcept Memory Booster 

eConcept Memory Booster will increase and free your RAM, giving applications more RAM to work with, and thus will speed up your computer. Comes with three levels of optimization.
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