As of November 2022, Microsoft Flight Simulator is the longest-running software product line for Microsoft, predating Windows by three years.
It was an early product in the Microsoft application portfolio and differed significantly from Microsoft's other software, which was largely business-oriented. Microsoft Flight Simulator is a series of flight simulator programs for MS-DOS, Classic Mac OS and Microsoft Windows operating systems. DOS, Classic Mac OS, PC-98, Windows, Xbox Series X/S, Xbox Cloud Gaming
