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Meaning of PKZIP

Computing Dictionary

A file compression and archiver utility for ms-dos and microsoft windows from pkware, inc.. PKZIP uses a variation on the sliding window compression algorithm. It comes with pkunzip and pklite and is available as shareware from most ftp archives in a self-expanding ms-dos executable.

Current versions as of 1999-10-07: PKZIP 2.60 GUI for microsoft windows 3.1x, windows 9x, windows nt; PKZIP 2.50 Command Line for Windows 9x NT; PKZIP 2.04g for ms-dos; PKZIP 2.51 for unix, (linux, sparc solaris, digital, hp-ux, ibm aix and sco Unix); PKZIP 2.50 for os/2; PKZIP for open vms/vax.

winzip is a version with a gui for microsoft windows.

A distribution in about 1995-06-22 claiming to be "PKZIP 3" was actually a trojan horse which attempted to reformat the hard disk and delete all files on it.