Not to unduely necro a thread, but: I've never seen retrogam3's issue mentioned anywhere else, and I have the exact same issue he does, on current Attract Plus 3.01.
I spent two days trying to figure out why .bat and .lnk files would not launch, and scrupulously following the directions out there... but it always went to a black screen and froze Attract. Log wasn't helpful in diagnosing it. Then I stumbled across this thread.
Adding a space anywhere to the file title (like changing from "th06" to "th 06") immediately cleared up the problem; all launch exactly as intended with no further changes.
I'm guessing it's some weird, specific interaction to fly under the radar and not affect more people, but, he's not alone.