Info-ZIP

Workgroup formed in March 1990 as a mailing list

Software
Info-ZIP's primary compression engine has also been spun off into the free zlib compression library.
 * UnZip (May 1990)
 * Zip (Sep 1991)
 * unzip.dll (Nov 1994) shipped with OS/2 Warp BonusPak
 * ZCrypt

Links

 * http://infozip.org
 * ftp://ftp.info-zip.org/pub/infozip/os2/