I have read the READ ME FILE " Models How To " txt , it seems we can using a MSFS model to be a FGFS model , just covernt , using " PLib " , the Readme said very clear how to do with it , and also I have already tried many times , but that was Unsuccessfully , nothing happend . How to do it ?? Or there is nothing to do .Anyone know it ??Thanks.

Forget the Readme. There are known problems with converting MDL's to AC3D's.Another method you may like to try instead is to ask the author(s) permission for the original mesh file. Then, it is a simple matter of opening the mesh file in GMax, and export the model into 3ds format. The author(s) may be reluctant to give out the models in their native format, but that isn't going to matter if they are willing to do the conversion.