Just a guess, but maybe your application requires ansi.sys or an equivalent to be loaded . Dosbox includes that functionality out of the box if I am not mistaken even though Dosbox is not suited to running anything other than games . Loading ansi.sys in the config.sys file fixed everything. YOU ARE …

We have been using a very old DOS estimating program. The computer finally died. I have all of the disks and files. I'm able to get them running in DOSBOX with no problems. Have a few identical DOS computers that still work fine. When I open this program in real DOS I get the main menu with messed …