A very good DOS emulator for old DOS programs under Windows XP.
BS Editor: A very good DOS emulator for old DOS programs under Windows XP or to run other operating systems, is DOSBox.
Here: www.angryflo.de / dosbox there is a German guide to DOSBox. In principle, DOSBox can only install and can be any audibleExecute file (exe).drag on the DOSBox.exe and already the old program back on Windows :-)
The Dos programs should first sit in a folder C: dosprog before they rt with Dosbox since this directory is already mounted automatically in Dosbox.

Basic code of the program: --- DXF_CNC鈥榮 replaced DXF files to a CNC format.
NEW:
Windows version of DXF_CNC now on the server!
And other examples that I have some programmed times.
you can free download DXF_CNC 1.0 now.