The hint with the hexeditor worked perfectly, and Dosbox does its job now very well. Thanks again!!

A collegue of mine programmed the tool many years ago. He has tried to patch it once, but that as well was supposedly years ago (and did not work on really recent systems either).

What a pity, as I unfortunately only have the .exe of the turbopascal application. Well, I'll try another DOS-emulator for windows then. Any recommendations? It ought to be speed-adaptable like Dosbox, as the TP routine crashes on newer machines (in that respect, dosbox works quite well, but alas …

I would like to use Dosbox to run older turbopascal-programs for scientific purposes. The problem is that the routines save their data to a folder on z:\ Unfortunately, dosbox uses z for system purposes. I have read in another thread and the readme that Z:\ cannot be unmounted, but is there another …