Gcarr - I did not try it with Schedules Direct. I had been using it with TVGuide.com and that has stopped working. I tried it again with the version you linked (from the Internet Archive) and I get the same error with TVGuide.com. However, the Internet Archive version - despite showing the same File Version 184.108.40.206 as mine - works with Zap2It.com. My copy, which I grabbed on Dec. 25, 2020, does not work with Zap2It. I thought the Internet Archive version was the same so I never tried it. That's why I switched to Zap2XML.exe.
So, based on your success and my own today, I think we can say that anyone downloading your noted Internet Archive version of mc2xml.exe [i.e., from HERE] can grab North American guide data from (at least):
TVGuide.com no longer works.
- Tarrow, maybe your problems with Zap2It would be solved this way too (downloading the Internet Archive version)?