Sonarc was probably among the first lossless compressors - the version featured here dates back to 1994. Due to its age, it's not very efficient.

Officially, it is a shareware program, but to my knowledge there are no limitations. Registration is now impossible because the author completely disappeared.

Date: 1994-06-27
Version: 2.1i
Interface: Command Line
Platform: DOS
Download: - 71Kb

©Roberto Amorim. This is a sister site of RareWares