Microsoft Flight Simulator, commonly known as Microsoft Flight Simulator 5.0 or FS5, is a flight simulator video game released in late 1993 for MS-DOS. A port for PC-98 was released in 1994. It was the last game in the series for DOS and the last game to appear on a non-Microsoft platform. An updated version, 5.1, was released in 1995. In November 1995, Microsoft acquired the Bruce Artwick Organization (BAO) from Bruce Artwick. Employees were moved to Redmond, Washington, and development of the series continued in-house at Microsoft.