Since the application works in the background, users wouldn’t notice the program running when playing an app or game. Developers can easily create full-featured apps and games to run on Windows. However, if you’re a developer, it will be beneficial to know how the application works to be able to use it to create games and other programs.ĭeveloped by Microsoft, DirectX is a collection of application programming interfaces (APIs) that are needed for programming audio and graphics. While you won’t ever need the application directly, you may need it if you play a game or work on an application developed using DirectX. DirectX is a system utility tool that developers use to better interact with the system’s sound and graphics card.