ZIP is a compression and file packaging utility for Unix, VMS, MSDOS, OS/2, Windows NT, Minix, Atari and Macintosh, Amiga, and Acorn RISC OS. Unzip unpacks ZIP archives. The ZIP and Unzip programs can work with archives produced by PKZIP; and PKZIP and PKUNZIP can work with archives produced by ZIP. ZIP version 2.2 is compatible with PKZIP 2.04. This port supports also Apple-event. So you can install it in your WWW-Browser as a helper-app. An additional apple event do_cmd gives you the full power of command-line invocation via Applescript. For more detailed information, including on updates, please read the documentation or visit the home page.