Actually I am not using it for DOS. I am playing around with the models of EVE Online. There is an .gr2 Exporter existing for this game (called Tri-Exporter). The issue is that it seems not being able to handle multiple UV maps in granny files it just exports data for just one, while there is no doubt there must be several within the file based on the texture maps that are used.
So I was sooooo happy when I saw that there is an exporter out there that seems to be more capable .... but unfortunately yours cant handle the compression. :-/