Will my addons from Microsoft Flight Simulator X work in Microsoft Flight Simulator?
We can’t give any guarantees that FSX add-ons will work. Microsoft Flight Simulator benefits from the latest technologies and to achieve this transition some parts of the code were deprecated, like reading 32 bits DLLs. And in the past, some addons have been created by using some tricks and methods like reading or writing directly into memory that can’t be applied to a new executable.
If you have any questions about specific addons, we highly recommend reaching out to the developers of the product to see if they have any plans for Microsoft Flight Simulator.