Media in C#.Net

Question

I need some tips on how to add sounds in a game of mine. And i really need them fast. If there's anyone of the members who know, please feel free to contact me on my address: [email protected] I asked my teacher, he asked me to do it with DirectX. But how? I have directX, but i dont know where it gets installed everytime i install it. Its all over the computer, it seems. Please help, fast.