Hy.
Is possible to emulate and use the directx 11 with directx 10.1 hardware?
how?
thanks.

Yes and No. U can certainly use DX11 even on DX9 hardware - by only using the feature set of D3D9. Running the full feature set of D3D11 only works on DX11 hardware, especially stuff like hardware tessellation. Compute shaders for example also work on D3D10 hw. Now, u can emulate also a lot of D3D11 features on d3d10.1 hardware. There is even a compute shader example that does tessellation. The thing is, u have to implement it yourself in either CUDA or shaders.