MS is now shifting its focus to FS11. As I understand it from Phil Taylor's blog (see 4th October), we should expect to lose backwards compatibility EVEN for FSX add-ons. However, FSX add-ons will survive into FS11 if they are "pure" FSX generated content, although even these may have to be re-"exported" for FS11 through FS11's own SDK.Obviously no one can possibly predict whether the 747X will work under FS11. But I am intrigued to know whether the 747X would at least pass that particular test? Or does it still have elements left over from earlier editions, which (it seems) might frustrate an easy re-"export" for FS11?RgdsTim Morshead

Tim,It is WAAAY too early for us to even speculate about something like this.If ACES truly is dropping all backwards compatibility for FS11, then it's actually a change we'd welcome with open arms even if it does mean that our FSX products don't work because it will hopefully mean the end of the performance problems we all wish weren't there.

Thanks. That's a perfectly fair response. I just wondered in an idle moment whether you knew off-hand of any FS9 left-overs, since these would apparently create a particular problem for FS11. But you are quite right: it is all just speculation. And I certainly agree that it would be a good thing to start again with a clean slate under FS11.RgdsTim