Thread: DirectX 10
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Old 08-04-2007   #3 (permalink)
Alun Harford
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Re: DirectX 10

dean-dean wrote:
> Maybe this will help:
>
> http://support.microsoft.com/kb/191660
>
> Note this section in the KB article:
> Method 1: Configure Hardware Acceleration to use the Full setting
>
> Downgrading DirectX is not an option, nor would it be a solution.
> DirectX 10 is backward compatible, so to speak.


Well, technically it's not.

DirectX 10 is not backwards compatible (unlike previous versions).

However, Vista comes with DirectX 9.0L as well as DirectX 10, so old
programs will run fine.

A DirectX 9 program will not know about DirectX 10, and will use DirectX
9. A DirectX 10 program cannot run on DirectX 9, and will use DirectX 10.

Alun Harford
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