Application Credentials

I have an old application that use to run in a Novel environment that I need to run in our new Windows domain environment. I believe I have it narrowed down to these four files causing problems; nwdir.ocx, nwselect.ocx, nwsess.ocx, and nwusrgrp.ocx as they look for credentials from the old Novel environment.

Is there a way I can debug the files to make them work in the domain environment?

Thanks in advance.

FYI - the four files above show up as active x controls under type when I veiw then in the program file path. Is there maybe a way to just disable these active x controls?