While it is possible to run this older version of Btrieve on Netware 5.x, I would not recommend it. If this is an old ODS app, it should run fine with the newer versions of Pervasive. IF the app starts with a batch file that makes btrive calls, remark these out and let the database engine take over. I have ran into this similar situation a few times and was able to get around it by remarking out all referance to Btrieve. TO really help you out, I would need to knwo more as to what you are wanting to do.
Michael Sotomayor
Certified Pervasive Professional
Certified Pervasive Techincian