
I also tried copy-pasting the "full" .exe file into the same folder as the demo .exe to see if there might be a file missing, but while it will boot up the initial loading screen, before it can go any further it gives me a slightly different error message:

My computer's non-unicode language is set to Japanese, so that shouldn't be the issue; if anyone is able to tell me what those error messages say it might provide a hint as to what's off-kilter here. Thanks in advance to whomever might be willing to offer an assist, and feel free to let me know if additional information might be helpful.