I get the problem too. It worked fine on win 7, but on 10 it cries Mac.
Any chance on updating the script? I saw someone mention something about a double extension on the above link.
I'm not smart on this stuff.
I've been using 1.8 since it still works, but it loads files extremely slow now days.
I really with this app were to get an update as I still have not been able to find a good replacement for it.