PowerArchiver 2007 --http://www.powerarchiver.com/
PowerArchiver 2007 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.
WinAce is not just another archiving shell. With it's own powerful compression format ACE and built-in support for other popular compression types
WinZip, the original and most popular compression utility for Windows, is a powerful and easy-to-use tool that quickly zips and unzips your files to conserve disk space and greatly reduce e-mail transmission time.