Free RAR Extract Frog
Support over 50 languages, fast, skinable extraction tool for RAR-archives. Available for free for Windows users. Received good rating from CNET.

Another quality archive tools from the open source community. It's mentioned on its official site, it can support more than 150 archive format. Apart from the commonly used, RAR, TAR, ZIP, and even 7Z, it also has its own archive format.

Be warn though, it did mentioned that the free package contain automatic installer/uninstaller. At times of writing, it's partnering with AVG. You can have the alternative of installing the package without third party bundle. Keep an eye on those fine print!

In one of our earlier post, we've mentioned about this free archive. You can rea more about it here: Cross Platform File Archiver

Zipeg is a free file archiver that can run on both popular desktop OS, Windows and Mac. It can support popular file format zip, .rar, .7z, .tar, .gz, .tgz, .bzip2, .iso, .cbr, .cbz and some lesser used file format like .arj, .lha .lzh, .cpio, .rpm, .chm, .z, .war, .ear