Note. Speaking for myself, I have a purchased MS Space Simulator which produced this error. I also have the Underdogs download to test if it produced the same result, and it did. So, all patronising aside, now that we have established that one user in this thread has a legal copy, any contribution …

Hi travis. Can't offer advice at the moment, however I have EXACTLY the same issue on my pc to, same error when running MSSPACE Sim from Underdogs through DOSbox. If I find anything I'll post it here.