Microsoft DirectX c is a software designed for Windows OS. It is freeware, that is it is completely free to use. It is used for running and using applications rich in Multimedia formats like color, graphics, videos, 3-D animations, and more. Several different games and applications require the user to download DirectX before playing the game. c. File Name: sroaden.site Date Published: File Size: KB. Microsoft DirectX is a group of technologies designed to make Windows-based computers an ideal platform for running and displaying applications rich in multimedia elements such . Directx 9 Windows 7 free download - PDF Reader for Windows 7, Windows 7 (Ultimate), Windows 10, and many more programs.