Hiis there a tool that will scan all the bgls and identify which one is a mesh?It is because a bad located mesh file (in a scenery folder associated with a texture folder) may cause CTD...Thank youGhiom

I think you are thinking of landclass definition files, not mesh.FS Manager had a scanner which would locate LC files. Note that having an LC file in a scenery with associated texture folder is not, in and of itself, a cause of CTD. Only if the terrain textures called by the LC file are not found in the associated texture folder (leading to FS9 looking in world/texture).scott s..

Thank youThis I know and I manage via FlightsimManager as you suggested.but what about mesh files?I thought they had the same behaviour?ThanksGhiom

Thank youThis I know and I manage via FlightsimManager as you suggested.but what about mesh files?I thought they had the same behaviour?ThanksGhiom

I have never seen a mesh file cause a CTD... I suppose it's possible, but unlikely.DJ

I have never seen a mesh file cause a CTD... I suppose it's possible, but unlikely.

They certainly can! I purchased a copy of FS Terrain on CD-ROM and had to eliminate a number of the files as they caused FS to crash with a terrain.dll failure. I heard they later issued updates, although by then I was using something else. I have also experienced this with some downloaded mesh of the Philippines. I've never known a crash attributed to terrain.bgl to not relate to mesh files.Unfortunately I cannot answer the original question - I don't know how to identify files that are terrain mesh other than that they are usually in a separate scenery folder which by name makes it obvious.I do all of my mystery scenery crash identification by elimination - disable half the scenery and see if it happens, etc etc until pinned down to the specific folder, then disable 50% of the files etc etc and chase it down to the file concerned. It is a long and slow process and needs a lot of patience but it works.Its the best suggestion I can offer.John