windows 7, spice, and sound

Hi all,

I can't seem to get any sound from windows. I use these settings: args: -device intel-hda,id=sound5,bus=pci.0,addr=0x18 -device hda-micro,id=sound5-codec0,bus=sound5.0,cad=0 -device hda-duplex,id=sound5-codec1,bus=sound5.0,cad=1
And in windows I can see two sound devices, but no sound.

Do I need to install something inside windows to get any sound?

PS. The client I use also uses hda-intel for sound. http://ark.intel.com/products/37164/...p-Board-DG41TY