by VENUM VCVW11 » Sun Jun 14, 2015 9:25 am
Hello
Just to be clear, FSX and FSX SE are two different simuations and are not compatible. I believe the only way you can join FSX and FSX SE is via vatsim. There is a box edition of FSX and an expansion pack called acceleration. For FSX STEAM it already includes acceleration so there is no need for SP2. Also with FSX+acceleration you'll have to uninstall SP2 as acceleration is an update that includes SP2. You will get an error if you happen to try to install acceleration over SP2 and possibly cause corruption. It will be hard to find acceleration by itself as fsx+acceleration come together has a two part set. Hope this clarifies.