First off, I am not sure whether this belongs in superuser or here, so I just put it here.
I have no idea how to use Windows Phone Device Manager (WPDM). It's "advertised" as freeware, but, when I actually go to use it, it appears that you have to pay for it. When I execute WPDM with my WP7.5 HTC Trophy, I get this message:
Support not available to unregistered users
Okay, fine. I don't get support for free. I consider myself an intermediate-to-advanced user, so I can handle that. However, when I attempt to use the File Explorer, I get this message:
Your phone must be registered or unlocked in order to use Windows Phone Device Manager
Well, my phone is unlocked (ie, I entered my pin to get past the lock screen). What do I have to do to actually be able to use this application?