Want to use gmax

is there anyplace you can d/l FSModelExp.dle. I really want to start designing with gmax, but I dont have the pro version. I do have the gmax and the makemdl sdk. But evidently thats not enough. any help would be appreciated
Flight Simulator and other chat
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https://forums.simviation.com/phpBB3/viewtopic.php?f=13&t=31610