PeaZip free archiver utility is a portable, open source file and archive manager. PeaZip is cross platform and runs on 32 and 64 bit Windows (9x, 2000, XP, Vista) and Linux. It supports handling many archive and compression formats:
PeaZip allows to edit, save and restore archive's layouts; apply powerful multiple filters to archive's content; handle multiple archives at once; export job definition as command line; encrypt with AES256 etc.
Other features: robust file copy, split/join files (file span), secure file deletion, compare, checksum and hash files, system benchmark, generate random passwords and keyfiles.