The LZH unit implements a fairly faithful port of an algorithm that was written in C by Haruyasu Yoshizaki and Haruhiko Okumura. The Documentation on how to use the unit is pretty goodm the source code is pretty much undocumented. Included is a simple 1 file compression program as a demonstration on how to use the LZH unit. Douglas P. Webb dwebb@binkley.cs.mcgill.ca