pdlzip
version 1.2 has been ported (1/9/2011) to OS/2. This is a public domain
version of the lzip program. Also available (1/5/2011) is lzlib
version 1.1, a data compression library providing in-memory LZMA
compression and decompression functions, using the lzip format.
Source: OS/2 Warp News and Rumors