I know this is super old, but I just figured it out for myself. Perhaps this could help someone else. Check the Readme for Makefile customizations...
step 1. Scan /mnt/winserver1, save the results as 'file1'
durep /mnt/winserver1 -sf /var/lib/durep/file1
step 2. Tell durep to check the default Makfile location for file1.ds, creates 'durep.cds'
durep -c /var/lib/durep/
step 3. Check the URL, i.e.
http://localhost/cgi-bin/durep.cgi