OK, Here is what i tried and tested a couple of times, and it seem`s to work so far. I always`s ran AS2012, and imported the flight plan from PFPX. I had already set up a flight in PFPX, and released the OFP to go ahead and fly the route. I had PFPX obtaining the weather info from AS2012, instead of online, as AS2012 was also online. I tried a flight with theT7-300, and as soon as i loaded the Perf Init, FSX CTD. I then closed AS2012, and reset PFPX to obtain weather directly online, under settings. I restarted FSX, without AS2012, and only PFPX. Started the same flight, and everything loaded normally, meaning, flight plan, Perf Init, route winds, and des forecast.
I hope this might help somebody, as it seems to have worked for the 4 times that I have tried it.
I only had a problem while i was still setting up the aircraft, and have not had a CTD while flying yet.
BTW, after setup, i then started up AS2012, to provide the weather.