Recognizing you aren't qualified to gauge someone's experience is a crucial first step, now take the next one. A "cheat sheet" of questions isn't going to help

Recognizing you aren't qualified to gauge someone's experience is a crucial first step, now take the next one. A "cheat sheet" of questions isn't going to help you either. Find an senior Windows developer you know/trust and have them talk to your potential candidates. They should be able to weed out the bozos quickly so you can focus your energy on candidates with real potential.