I know that MAS 90 is no longer supported, and that it was changed to SAGE 100, and *that's* no longer supported, but MAS 90 is what we have, and I could really use any documentation that exists.
Is there any place where I can download it?
(Since I have to choose a Category for this post, I chose "Data and Database" because I ultimately want to make batch data uploads into Accounts Receivable).