It 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 9.0 includes security and performance updates, along with many new features across all technologies, which can be accessed by applications using the DirectX 9.0 APIs.
It is required by almost all PC games and 3D applications. The Microsoft DirectX End-User Runtime provides updates to 9.0c and previous versions of DirectX” the core Windows technology that drives high-speed multimedia and games on the PC.
* This is the 'redist' version of DirectX - all files are downloaded in one package (rather than an active download). * Instructions: make a system backup or restore point. Double-click on the file once the download has completed. You will be asked where you want to place the extracted files. This is a temporary folder only - you can delete these files once the Direct X 9.0c installation has completed. Now go to that temporary folder. There will be lots of files in there - run DXSETUP.exe and wait for it to complete the installation. Restart you computer if required. Now you can delete the files in the temporary folder. For future use, you can keep the file you downloaded or simply delete it - it doesn't matter.
* DirectX is a crucial system component. It cannot be uninstalled without reinstalling your operating system (!) or performing a system restore/system recovery.
* To determine what version is current installed on your system and other tips about DirectX, see our guide here.
* This version of DirectX was released November 2008.