What is fsx sp2?

FSX SP2, or Flight Simulator X Service Pack 2, is an update for Microsoft's Flight Simulator X, released in 2007. It introduced various enhancements, including improved graphics, more realistic aircraft physics, and new features like support for additional aircraft and missions. The update also aimed to enhance the overall stability and performance of the simulator. Additionally, it added compatibility with DirectX 10, allowing for improved visual effects.