Microsoft has released an updated DirectX package for all versions of Windows. This is a
DX9/DX10 update that's not going to show up on the Windows Update website, but is an official release
required by all games for functionality.
The DirectX redistributable includes all the latest and previous released DirectX runtime. This includes the bi-monthly D3DX, XInput, and Managed DirectX components and provides the latest DirectX that developers include with newly released and all older Games.
Latest Update:
March 2009
DirectX End-User Runtime Web Installer Download details: DirectX End-User Runtime Supported Operating Systems: Windows Vista
Windows Vista 64-bit Editions Service Pack 1
Windows Vista Business 64-bit edition
Windows Vista Business N
Windows Vista Enterprise
Windows Vista Enterprise 64-bit edition
Windows Vista Home Basic
Windows Vista Home Basic 64-bit edition
Windows Vista Home Basic N
Windows Vista Home Premium
Windows Vista Home Premium 64-bit edition
Windows Vista Service Pack 1
Windows Vista Starter
Windows Vista Starter N
Windows Vista Ultimate
Windows Vista Ultimate 64-bit edition DirectX End-User Runtime Redistributable Download details: DirectX Redist (March 2009) Supported Operating Systems: Windows Vista
Windows Vista 64-bit Editions Service Pack 1
Windows Vista Business
Windows Vista Business 64-bit edition
Windows Vista Business N
Windows Vista Enterprise
Windows Vista Enterprise 64-bit edition
Windows Vista Home Basic
Windows Vista Home Basic 64-bit edition
Windows Vista Home Basic N
Windows Vista Home Premium; Windows Vista Home Premium 64-bit edition
Windows Vista Service Pack 1
Windows Vista Starter
Windows Vista Starter N
Windows Vista Ultimate
Windows Vista Ultimate 64-bit edition