I have happily installed a lot of standard fsx addons including A2A accusim, FTX and others. This in mind, one thinks it may not be too hard to add to SPADs recognition of valid flight sims.
For those who don't know, Prepar3d is Lockheed Martin's Licensed release of Microsoft's FSX/ESP engine. According to all the documentation I've found, PREPAR3D has kept all the original fsx acceleration code and merely added some extra features AND more importantly, they've reworked the core code to run properly on current-gen PCs. And I have to say, IT ROCKS!!
As it stand,s SPAD won't recognise it as a valid FSX install. Notifying the error message: "run-time error '9': subscript out of range."
Would be great if we could get some support for this.