DirectX 9.0a is an updated version of DirectX 9.0 which includes bug fixes and improves performance in the graphics and networking components. There are no new or modified APIs in this release. Specifically, this update includes: Performance enhancement to the runtime texture management in Direct3D. General performance improvements to D3DX Fix for a potential PSGP memory overwrite in Direct3D. Support for anti-aliased render targets added. Update for DirectPlay to address some network connectivity issues using some UPnP routers. The DirectX Managed Code layer has been removed from this download to minimize the potential download size. This component will continue to be offered as part of the DirectX redistributable for developers to redistribute as required. The DirectX 9.0a redistributable will be available soon.

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