Hi Jeff, Is this in a DDK after 5483 since I cannot find it in 5483? Thanks again, Ally ________________________________ From: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Jeff Pages Sent: Sunday, September 03, 2006 5:43 PM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] Re: IAudioEndpointVolume It's in the header file endpointvolume.h. Jeff ----- Original Message ----- From: Alexandra Schoepel (Ally) <mailto:Alexandra@xxxxxxxxxxx> To: wdmaudiodev@xxxxxxxxxxxxx Sent: Friday, September 01, 2006 2:49 AM Subject: [wdmaudiodev] IAudioEndpointVolume Hi guys, Which is the first version of the SDK that defines IAudioEndpointVolume and which header is it supposed to be in? I have 5483 and in a text search on the entire directory, I wasn't able to find any header containing the IID or the interface name. Thanks, Ally