FTX Global doesn’t like other scenery addons (such as the company’s AU, NZ, EU and NA products) which in general overlay specially created sceneries and textures on top of the default FSX layer to render the ultimate image. It simply replaces FSX default textures in the World\Scenery\Texture folder with its own creations.
This approach is somewhat similar to what REXessential from REX Game Studio or the Ground Environment products from Flight 1 does to FSX — the former replaces FSX’s default clouds and atmospherics items, and the latter replaces FSX’s default ground textures, meshes and some core files with their own modifications.
FSX TIMES 