This morning a teacher asked me to help him with a program he needed to get running. Some old Bingo program that he uses 1 time every year for a co-worker christmas gathering.
Turns out it ran in MS-DOS! Apparently there used to be an old computer somewhere that the previous IT guy would dig out for him every year. I just installed DOSBox on a Windows 10 computer instead and mounted everything so all the teacher has to do is click a desktop shortcut