Compression Tools

PowerArchiver 2010 11.63.12 Free - PowerArchiver offers hundreds of features, yet remains easy to use, small and fast. Novice users will find a familiar interface complete with tutorial and detailed help, while more experienced users can take advantage of full Explorer integration, multiple encryption methods and advanced compression algorithms.

PeaZip 3.2.1 - PeaZip is an open source file and archive manager: cross platform, available as portable and installable software for 32 and 64 bit Windows (9x, 2k, XP, Vista) and Linux (PeaZip is a desktop neutral application). PeaZip is freeware, free of charge for any use, and is also free as in freedom since it's Open Source (LGPLv3).

7-Zip 9.14 Beta - High compression ratio in new 7z format with LZMA compression
7-Zip is free software distributed under the GNU LGPL

ExtractNow 4.4.4.1 - ExtractNow lets you extract multiple archives with the ease of a singular button. Supports ZIP, RAR, ACE, & JAR file formats.