I would like to know whether my display driver supports DirectX 11 or not? How do I know the display drivers's capability? Especially, how do I know whether it is supporting shading language or not?
Start > Run... and type
dxdiag
For my case (see attached screenshot), I can run all DirectDraw Tests, but my card doesn't support Direct3D (it is grayed out). If you need more details on the card support, then maybe other tools will help (I don't know which one though)