Unless you edit DOSBox sources and recompile it yourself, you are out of luck.

I think it would be easier to modify Turbo Pascal code to store data in a drive other than Z.

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...)

Thank you anyway.

Depending on how it was programmed, you might be able to change the
drive in the pascal executable as well using a hexeditor.

Also did you try some of those borland patchers? The problem you
describe is a well-known bug of the crt library and several fixes
are available that work on the .exe only (tppatch iirc)

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).

See e.g. http://www.brain.uni-freiburg.de/~klaus/pasca … 0/download.html

If it doesn't work out, you might want to upload the program and/or send
it to somebody, as long as it doesn't violate some copyrights.

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