Sage 100

I have a client who is on a unix server using a very old version of Mas90 (I believe 3.xx) What's the best way to migrate to a windows OS using Sage 100 ERP 2015? Is there a utility that I can use which will convert those files?

I've run the parallel migration wizard several times with errors that the path didn't exist, permissions errors and the .bak files are missing from a directory. Resolved all those errors. Now when I run the parallel migration wizard, it just stalls after…