Going by memory with the following. I may be incorrectly remembering as it's been a while since I used ProMash. I don't believe ProMash is so equipment dependent as BS.
I will admit, when I was using ProMash, early 1990's, I really didn't know what I was doing. I look at my brewing notes from that time and now think “What was I thinking!”.
I copied the 3 ProMash 3.5 floppies onto a USB drive and still the ProMash patch/update in case I ever need it.