No Sound in windows VMs on Xenserver

To enable sound for windows VMs on Xenserver, the following settings have to be changed:

1. Go to control panel > administrative tools > terminal services > terminal services configuration, enter the “rdp-tcp” properties where you set various parameters of the RDP role offered by the TS.
2.  Go to the “Client settings” tab and UNTICK audio. By default, “ticked” options mean “disable”. So, remove the “disable” tick from audio, log off, re-logon and voila!
3.  Enable ‘Windows audio’ service in services.msc
4.  Enable audio in mstsc setting while connecting from client.

OR

1. Go to the sound control panel (Start-> (Settings->) Control Panel-> Sounds and Audio Devices)
2. Select Audio tab.
3. Select Microsoft RDP Audio Driver for the default playback device, if not already specified.
4. Check the “Use only default devices” checkbox at the bottom of the dialog.
5. Click the Voice tab.
6. Select Microsoft RDP Audio Driver for the default playback device, if not already specified.
7. Save settings by clicking on OK button.