Editing Microsoft Flight Simulator (section)

===Availability===
A number of websites are dedicated to providing users with add-on files (such as airplanes from actual airlines, airport utility cars, actual buildings located in specific cities, textures, and city files). The wide availability over the internet of freeware add-on files for the simulation package has encouraged the development of a large and diverse virtual community, linked up by design group and enthusiast message boards, online multiplayer flying, and '[[virtual airline (hobby)|virtual airlines]]'. The internet has also facilitated the distribution of 'payware' add-ons for the simulator, with the option of downloading the files, which reduces distribution costs.