Cacheman 4.1 OS- windows 95/98/ME
FREEWARE
description:
Cacheman tweaks the disk cache settings under Windows 95/98/Me and prevents frequent swapping of the data to the hard drive, resulting in improved performance, system-reaction time, and stability. Cacheman also corrects common problems on systems with more than 512MB of RAM. To view some screenshots, click here and here.

Matrix Tweaker 1.0 OS-windows NT/2000
FREEWARE
description:
From the developer: "Powerful and useful utility for tweaking Windows NT/2000. This is new version of Windows 2000 ToolKit. Features: tweak system, hardware and desktop settings, fix problems with localization, edit autorun list in Registry and more other powerful tweaks. Visit to HomePage (http://matrix.3dnews.ru) for check new versions and patchs for Windows NT/2000."