Is there still a standalone Flash player? (or at least, will the debug version work?) Haven't messed with Flash stuff in over a decade but I remember having a standalone player to play downloaded SWF files back in the day. No idea if there's anything roughly equivalent out there in its current incarnation.

A sandboxed player application would go a long way toward the uses mentioned in this thread, no? I wonder when we'll start seeing Flash emulators being developed to play back all that old content.