"WinRAR is a powerful archive manager. It can backup your data and reduce size of email attachments, decompress RAR, ZIP and other files downloaded from Internet and create new archives in RAR and ZIP file format.
Archive file formats supported are ZIP, RAR, ACE, CAB, ARJ, LZH, TAR, GZ, BZ2, UUE, JAR, ISO, 7Z and Z.
Themes:
WinRAR Jr. theme, CrystalTheme, WinRAR Smile theme, WinRAR GANT theme, WinRAR MaRado, Delato theme, WinRAR Gorilla theme, WinRAR Orbital theme, WinRAR Noia Bogart theme, WinRAR XP theme, WinRAR OS X theme, RARaddin theme, WinRAR JOM theme, WinRAR Cryo64 theme, WinRAR Lord Darksys theme, WinRAR Windows 98 theme
http://www.rarlab.com/