Hi Mike:

resample.exe is a DOS executable without any graphical user interface. You'll have to prepare your raw elevation data, create an .inf file with the necessary parameters, and then call resample.exe with the .inf file via a DOS window or a .bat batch file. All this is explained in the "Creating Terrain.pdf" documentation, which comes with the FS2002 Scenery SDK.

Hope this helps. Cheers, Holger