Check what promt error you are getting if any. Also check for windows update. And further you an directly download DirectX from Microsofts website
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.
As the Dekaron client uses the DirectX component of the Windows operating system it is not available for Mac OS X.
Microsoft created the DirectX component for graphics. Direct"X" was used in the "X"box. This is one of the reasons for it.
DirectX 10 is the newest standard.
DirectX 8.1 is old and unsupported. You would be better served by upgrading your directX.
There is no need to download DirectX for Vista. it already bundles the latest version of DirectX.
DirectX is not about your operating system but it's about video card you have. Video cards available today support DirectX 11 and as far as you have drivers for such video card your will support DirectX. Make sure that you update DirectX.
DirectX 9.0c is not available for Windows 7; to actually install DirectX 9.0c, you would have to downgrade to Windows XP (any edition). In order to play games which require DirectX 9.0c without downgrading your installation of Windows, you must upgrade to DirectX 10.1 or later. DirectX 10.0 (initially included in Windows 7) did not include support for DirectX 9.0c, a decision that Microsoft ultimately repealed when DirectX 10.1 was released.
gta4 needs directx 9,10,11
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.
just download the program called KMDXC(Just Google it). After downloading select directx 10 and click patch.