It does seem it has to be something in the naming, but I don't understand it, unless the programming language used to build JSGME has something in it's code for file names that's mangled... Maybe it's built with a scripting language, and has to use "Escape" characters, and expects that "XX_XxxxXxx_xx.ext" formatting nomenclature, with the multiple Caps and Underscores, but "that does not compute" in my brain... I can't think of ~how~ it would do that... I mean, it's a self-contained executable. It does not rely on a windows library, does it?...
Edit: This has shades of "Bismark versus Bismarck" to it...

- sorry, inside "joke"...