A-ha! "Core=normal" did the trick! Thanks greatly for the help, sorry I couldn't have provided a bigger challenge for all you eager fellows... 😀

Hello! I realize this is a rather old post and the original poster has probably long since moved on, but I'm having the exact same trouble. I'm trying to run DataEase 5.15 on a Vista 64-bit machine through DOSBox. As on our Win98 machines, when you initiate the program, it says "DataEase..." and …