packHUF really is more some kind of an experiment than actually useful (for the typical user) software. It is a pure huffman based compression tool and therefore will typically achieve rather poor results when compared with more recent developments. It may still be a great base for further developments.
Download it from here:
packHUF v0.2f (LPGL)
packHUF is based on the huffman routines in packMP3 but, on it’s own, has almost not been tested at all – so stuff might go wrong for you, you’ve been warned.
You may freely use packHUF under the terms of the LGPL.