Being a new user of FS4 I have happily downloaded and successfully used some of
the aircraft files from "flightsim.com". Trying the same with a scenery led to
dismay and frustration as it did not work, and I gradually understand some
add-on (ASD and/or AAF) is needed for the sceneries I have found so far.

Hence the question: Are there any sceneries available that can be added to a
"naked" FS4 (version 4.0b)??