Info-ZIP
Workgroup formed in March 1990 as a mailing list
Software
- UnZip (May 1990) Version 3.0 and later
- Zip (Sep 1991)
- unzip.dll (Nov 1994) shipped with OS/2 Warp BonusPak
- ZCrypt
Info-ZIP's primary compression engine has also been spun off into the free zlib compression library.