There is no need to download DirectX for Vista. it already bundles the latest version of DirectX.
gta4 needs directx 9,10,11
There is no version of DirectX 10 for Windows XP.
DirectX 10 is included with Windows Vista.
There is no need to download DirectX 3. Versions of DirectX up to DirectX 9 are backwards-compatible. So if you have one version, you can use games and programs that require a previous version. Besides, the DirectX 3 installerwasmeant to be used only on Windows 95, and would probably cause problems if installed on later versions.
Since the release of DirectX 8.0 graphics cards have used programs/instructions known as Shader Models to help interpret instructions on how to render graphics sent from the CPU to the graphic card. Many games are increasingly listing Shader Model versions in their system requirements.However these shader versions are tied to the version of DirectX that you have installed on your PC which is then in turn tied to your graphics card. This can make it difficult to determine if your system can handle a certain shader model or not.To determine the version of DirectX you have running:1. Click on the Start menu, then "Run".2. In the "Run" box type "dxdiag" (without the quotes) and click "Ok". This will open up the DirectX Diagnostic Tool.3. In the System tab, listed under the "System Information" heading you should see a "DirectX Version" listed.4. Match your DirectX version with the Shader version listed below.Once you've determined the version of DirectX running on your PC you can use the below chart to determine what Shader Model version is supported.Please note DirectX versions prior to DirectX 8.0 do not support shader models• DirectX 8.0 - Shader Model 1.0 & 1.1• DirectX 8.0a - Shader Model 1.3• DirectX 8.1 - Shader Model 1.4• DirectX 9.0 - Shader Model 2.0• DirectX 9.0a - Shader Model 2.0a• DirectX 9.0b - Shader Model 2.0b• DirectX 9.0c - Shader Model 3.0• DirectX 10.0* - Shader Model 4.0• DirectX 10.1* - Shader Model 4.1• DirectX 11.0* - Shader Model 5.0*DirectX 10.0 and higher will not run in Windows XPOne recommendation prior to installing a newer version of DirectX is to ensure that your graphics card supports that version of DirectX.
You probably do not have the latest version of DirectX installed. DirectX is a graphics driver that can be downloaded of the DirectX website and installed for free.
Microsoft DirectX (all versions) is a set of application program interfaces that allows programmers to code for hardware devices without previously knowing which hardware will actually reside on any given machine. The DirectX program does this by using a middle-man interpreter that interprets generalized commands into commands tailored for the hardware that is installed on the machine that the application is running on. Each new version of DirectX adds to the library of interfaces that the translator can translate to.
A DirectX 9 or better graphics card is required to use the Aero Glass interface.
http://www.microsoft.com/downloads/details.aspx?familyid=2da43d38-db71-4c1b-bc6a-9b6652cd92a3 This downloads a program which detects your current installation, and downloads updated components, as well as installing them. Note: this is not for DirectX 10.x - that is a separate download.
DirectX is an integral component of the Windows operating system. If a newer version exists for your operating system, you will find via the Windows Update applet in Control Panel.
You do not need to download DirectX 6.1. All versions of Windows from Windows 98 SE on up include DirecTX 6.1 or newer. If you have Windows 95, you should download DirectX 8.0a, available at the link below.