PowerArchiver 2010 Version: 11.62 - 2/5/2010 A powerful compression utility that packs an extensive collection of features in an easy-to-use, attractive interface
WinRAR Version: 3.92 Beta 1 - 1/25/2010 Rating: A powerful archive manager and a formidable rival to WinZip
7-Zip Version: 9.10 Beta Release - 12/22/2009 An open source compression utility that supports the new 7z format with LZMA compression and much more