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 as full-color graphics, video, 3D animation, and rich audio. DirectX 9.0c includes support for Pixel Shader and Vertex Shader 3.0, along with many new features across all technologies, which can be accessed by applications using the DirectX 9.0 APIs. This download provides the DirectX 9.0c end-user redistributable that developers may include with their products. The redistributable license agreement covers the terms under which developers may use the redistributable.
Note: The DirectX 9.0c runtime cannot be uninstalled. It is recommended that Windows Me and Windows XP users create a 'system restore' point before installing.