How to test for WDDM compliance

I have a requirement to write an application that will check our machines against the Vista requirements.  Although there are some existing tools they either don't run on legacy machines or the analysis provided doesn't meet our needs.

So far I've managed all but WDDM compliance.  Is it possible to use WMI or something similar to check for this on non Vista machines?  
Michael_StopfordAsked:
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grayeCommented:
No, WMI will not provide sufficient detail to test againts WDDM.   At best it can tell you the product name (which you may be able to translate into the chipset used).   So, you'd have to have a database of product names vs chipsets vs WDDM compliance to make it all work.
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Michael_StopfordAuthor Commented:
Thankyou for your reply graye.

Unfortunatly I've been somewhat misled by the WMI documentation which on reading implies that only WDDM compliant/capable hardware returns data in the Win32_DesktopMonitor class.  As you have suggested we may build a database so that we can cross reference the hardware against the reported capabilities.  However, if it become too onorous a task we might just go for Vista capable status rather than Vista ready.
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