DingoAteMyBaby, on Jan 5 2011, 05:38 PM, said:
And what pwn (Dexter) is saying is you can not update models if you do not have the source files, and many design groups that have made products (like ifdg, posky, dreamwings) will never update their models to be compatible with future versions of FS because they aren't around anymore... FSX uses a similar structure that recognizes older .mdl's which is why all FS9 aircraft can work in FSX... but if MS Flight uses a new engine, then unless it supports older .mdl's then older airplanes made by defunct design groups won't work... unless they released the source files.
Also, most developers want to sell both an FS9 and FSX version of their product. A lot of the time, though, developers rebuild their addon from the ground up to be compatible with FSX. And you are right: The reason we're able to use FS8 aircraft in FS9, and FS9 aircraft in FSX is because the way the game engine uses the files hasn't changed.
Edited by -Dexter, 05 January 2011 - 05:53 PM.