connecting RX-V1077 to my pc

Hi i just bought a RX-V1077 amp ( yamaha ). I hard wired it to my router and i can find it on my computer in network under media devices and other devices. How do I add it to my sounds so I can play all the music and sounds from my pc on my amp?



I was able to find a tutorial how to stream it using windows media player, found right here and it works

http://windows.microsoft.com/en-ca/windows7/products/features/play-to



But that is not what I want. I want to be able to go to sounds and make if my default sound. Dose any one know how to add a media device to sounds?



Thanks for reading