Free Zip files utility, free Rar files extractor
Compress, convert, split, encrypt, secure delete
Open RAR TAR 7Z ZIP ZIPX files, 150+ formats supported
Supported systems: Windows 9x, Windows NT/2K/XP,
Windows Vista/7/8 (32 and 64 bit), ReactOS, Wine
Reference: http://peazip.sourceforge.net/