Hi Les,

There are two other versions of Info-Zip/Unzip you can try.

From:
http://www.altsan.org/os2/utils/

===
Info-Zip UNZIP 5 for OS/2

These are my own builds of Info-Zip's UNZIP utility (version 5.x) for extracting ZIP archives. I originally started doing these builds after Info-Zip stopped supporting LZW compression (which is required by quite a
lot of existing OS/2 software) in its official builds.

Starting with UNZIP 5.52, Info-Zip has reenabled this support in their own official builds. I have provided my own build of version 5.52 here
(originally because Info-Zip's own official release was delayed somewhat), although there should be no longer be any functional difference with the Info-Zip release. However, I have no plans to release my own builds of
future versions.

Paul Smedley has an experimental build of version 6 (along with version 3 of ZIP) on his OS/2 ports site.
===

You can give both of these versions a try to see they will help. Links are
on the above website.

Hope this helps!

-- Sean

... Infinity is one lawyer waiting for another.
___ MultiMail/Linux v0.52
--- Maximus/2 3.01
* Origin: Outpost BBS (1:18/200)