Microsoft® Flight Simulator X Demo Release Introduction Thank you for trying the Microsoft Flight Simulator X demo. The Flight Simulator X demo version is pre-release software. These Release Notes outline the features of Flight Simulator X. It also discusses known issues and incomplete features. We hope you enjoy the Demo version of Microsoft Flight Simulator X. Installing Microsoft Flight Simulator X To install Microsoft Flight Simulator X: If installation does not automatically start: Major Known Issues Setup Aircraft Scenery Configuration Missions