Essentially the title. I downloaded Mesen, and Launchbox won't open it. I've tried default settings, I've tried switching around some command line parameters, no dice. Mesen itself opens just fine by itself and through the command line. I have no idea what's up with Launchbox.
Emulator details:
I've tried checking "Don't use quotes", "No space before ... ", "Attempt to hide ... ", and "Extract ROM archives ... ". Not all at once, of course.
Associated platforms is set up:
No AutoHK scripts:
And my ROMs are set up to use this emulator:
I have no idea what's going on. Any ideas?