I have searched this forum and others for any reference to the use of sounds in Gmax, but no luck at all.Thanks to Arno's CAT program it is now very easy to make hangers with opening doors (thank you Arno, the old editing method was so tricky I had almost given up!).I noticed that there is a sound option in Gmax, so now (in Gmax anyway) I can have my rusty old hanger doors open with a grating, grinding noise. (Go to Graph Editors>Track View>Open Track View and select sounds)How to get this to work in FS?As an alternative to Gmax I tried Peter Dowsons esound.dll but I don't think it works with scenery.Any ideas?Geoff

I am pretty sure that MakeMDL does not support the sound option of GMax. I think you can use sound with effect files, but I have never tried that.