Why not use the RDP audio redirection that is already supported in Vista? Unless I misunderstand your question, it essentially gives you what you are asking for. Frank Yerrace Microsoft Corporation This posting is provided "AS IS" with no warranties, and confers no rights. From: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Dennis Scott Sent: Wednesday, August 19, 2009 11:38 PM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] Audio devices for terminal servers. adding to the last mail.... I have already completely working Virtual audio device that can route the System audio an capture the mic input over a network, i just wanted that to be "session" specific. ---------- Forwarded message ---------- From: Dennis Scott <dennis.scott@xxxxxxxxxxxxxx<mailto:dennis.scott@xxxxxxxxxxxxxx>> Date: Thu, Aug 20, 2009 at 12:01 PM Subject: Audio devices for terminal servers. To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx> Hello guys, Let me say i have 3 audio drivers(audio1, audio2,audio3), and 3 users (test1, test2, test3) with admin rights, are the following situations be accomplished in Vista. 1. test1 logs into computer over RDP from an linux machine, can i stream the audio for this user using audio driver "audio1". 2. test2 logs into computer over RDP from an linux machine, can i stream the audio for this user using audio driver "audio2". etc.. i.e: different users over RDP has to be assigned different audio drivers at login time. If possible please point me in the correct direction. dennis.scott