C # Add DirectX and directsound references below

Today, we will use C # To develop the directsound application (under vs2010). According to the online description:

 

But I cannot find it in the system. I am sure that the directx9.0sdk is installed, because the development in C ++ is good.

Finally, we can see that the example of dircetsdk contains C #. Check the reference location and add the reference through browsing:

DirectX in:

C:/Windows/ASSEMBLY/GAC/Microsoft. DirectX/1.0.900.0 _ 31bf3856ad364e35/Microsoft. DirectX. dll

Directsound in:

C:/Windows/ASSEMBLY/GAC/Microsoft. DirectX. directsound/1.0.900.0 _ 31bf3856ad364e35/Microsoft. DirectX. directsound. dll

 

I don't know why, but I cannot find it through my computer ~~~~