[wdmaudiodev] Re: Vista logo signing for software-only driver

  • From: "Frank Yerrace" <Frank.Yerrace@xxxxxxxxxxxxx>
  • To: <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Tue, 20 Jun 2006 10:47:59 -0700

For Vista, the appropriate programming model for this sort of signal
processing is audio "System Effects" which are implemented as user-mode
modules rather than kernel-mode. If you search the archives of this
mailing list you will find some discussions about System Effects.


Frank Yerrace

Microsoft Corporation


This posting is provided "AS IS" with no warranties, and confers no



From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Jeff Claar
Sent: Tuesday, June 20, 2006 10:27 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Vista logo signing for software-only driver


Hi everyone,


I have an AVStream driver that takes an audio input, does some
processing on it, then passes it to the hardware codec (using
KsCreatePin and KsStreamIo). Does anyone know if it is possible to get a
WHQL signature for a driver like this? I'm passing just about all the
HCT 12.1 tests, but I'm having trouble finding information about
submitting software-only drivers. I'm concerned that it will not be able
to play protected content under Vista.





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