M'44 VM's Scenario problems with Vista?

[Ricky B]

If the game works fine for just you, but when using files from other players it won't, that indicates that there is a version problem with something. You and your opponents are running a file that is different somewhere - possibly the OOB - or else the pdt versions are different. Maybe try reinstalling everything except this add-on that isn't VMs that everyone has, as I have no idea who that even comes from and haven't heard anythng specific about it???

If the game runs for you it really can't be a missing file or you would have the problem in all games, not just PBEM.