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#11
Thanks, MotorFinders, and I apologize for the delay. It turned out that the copy protection system just cannot work on modern versions of Windows. But I discovered that the game is AbandonWare, and so I found the workaround files there. The first thing they did was to apply an official update, then I had to replace the protection file with a hacked version. When this was complete, everything worked fine!
Thank you for all your time and assistance!