I have at long last managed to get some old DOS applications that were running under Windows 95 to work under XP. I ended up using Moslo to slow down the application so that it would work. It is running at something like 0.6% of the speed it would run under my XP machine... In fact I was so pleased to get it working I went and bought a Moslo licence (about £10) as a way of saying thank you. So back to topic, what errors are coming up?