I'm guessing that A/C designated FSXXXX"Pro" won't worked in the regular version.Is that correct?Another Bill Gates ripoff?Is there a place here where basic questions like this are listed and answered?ThanksP.S. Any old Tokyo or NY ARTCCers around here?

They will work, i.e., they will fly, but the pro version has some gauges that the standard version doesn't so these won't appear in your panels.