Oh, it definitely works in FS9 with no issues at all, so should in theory work in FSX, although I can't be sure on that as I don't have said FSX. You'd probably have to alias it to the default 737-800 panel I guess, or pick up a freeware 767/777 panel (if there is one). My advice would be to download it and try it - nothing to lose, and the price is right!
Moach's 777 Experience will be compatible with both FSX and FS9, I understand. This is in development and can be followed in the SimV design forum.
