I downloaded VDOS 2019 05 version, and then copied my paradox 3 program folder into the VDOS folder. I started the program, saw that the test worked, and then deleted most of the autoexec file. I then started VDOS again and entered bowling.bat which contains the commands listed below. The Paradox screen comes up and then just says "LOADING..." and doesn't continue. If I try to close the panel, I get the message that "one or more files is open" and I have to use Task Manager to close. I'm not a DOS whiz, I"m trying to help a friend with an old computer that runs a DOS program that they need.
I don’t know to what extend Paradox 3 conforms to 3.5. I have to start the latter by PARADOXR.EXE, not PARADOX.EXE. That would execute PARADOXK.EXE, PARADOXT.EXE, then PARADOXR.EXE, all with weird parameters and crashes.