I have a program which was designed (apparantly) to run in Dos 5. It will run in windows XP, however it doesn’t show some text properly. It comes up as garbled gibberish characters. One example is the help file which displays headings such as “Index”, “Contents”, and “Back” correctly but the actual contents are garbled.
It is called UCT-1 and is a simulator/training program for the Universal UNS-1B flight management system. Essentially it’s a training aid for a whizzy-doo GPS.