Free WinUnRAR

"Free WinUnRAR is a little and easy to use utility. If you have it installed, you are able to decompress '.RAR' files in a fast and simple way (shell context menu - right click on file)."

Works great. A nice alternative to commercial products such as WinRAR when all you need to do is decompress the occasional RAR compressed file.

ICSWEEP – Free Command-Line Tool to Clear the Temporary Internet Files Cache of ALL User Profiles

"ICSWEEP is a command-line utility to clear the Temporary Internet Files cache of ALL user profiles that are NOT in use when this command is executed.

This utility was written for the purpose of allowing a SINGLE command to identify and clear Temporary Internet Files cache of ALL user profiles currently NOT in use. This tool could be simply run from the command line at any time, or added as a SCHEDULED TASK for regular cleaning of user profiles, reducing the overall size of a profile and saving disk space for locally based profiles."

Inkscape

Inkscape is "An Open Source vector graphics editor, with capabilities similar to Illustrator, CorelDraw, or Xara X, using the W3C standard Scalable Vector Graphics (SVG) file format.

Inkscape supports many advanced SVG features (markers, clones, alpha blending, etc.) and great care is taken in designing a streamlined interface. It is very easy to edit nodes, perform complex path operations, trace bitmaps and much more."

"Aiming for capabilities similar to Illustrator, CorelDraw, Visio, etc."