I've read in the past of members using Win 7 and not having any issues. I have searched the forum, but honestly the forum search is not too good. So, in installing the CFS-2, putting the patch in and I am unable to get it to play (for the short time) as we've had to do. Just in case this was not necessary. The only thing I found in the FAQ is about Vista and administrator issues or what you call it?, and changed that. As much as Win 7 is nice, if it is that much problem for OFF and HITR, then one will have to go.. And I can't think of a sim that has been more emjoyable but I just put up with the headaches any longer. If anyone that is using Win 7 know what I might do, or lead me in a direction, I will give it a try. Otherwise its back to FSX and will wait until Phase4. But it would have to be a whole new deal and be compatible with Windows 7 or I won't purchase it. Thanks