Featured site of the Day:
Sysinternals Freeware: Provides advanced utilities, technical information, and source code related to Windows. This site contains some of the best and most useful free utilities for Windows.
To install most of these utilities you need to un-Zip them (Windows XP users, double-click .ZIP files to open them), and copy the contents to another folder. To remove these utilities, all you have to do is delete the programs.