You can set this property in your .inf to make your audio device ineligible to
Sent: Tuesday, February 28, 2017 11:36 PM
Subject: [wdmaudiodev] Unexpected default sound device on Windows 10
I have a virtual audio device driver based on MSVAD Simple. It works
pretty well, but I start experiencing the problem on Windows 10. I don't
know if this was the issue before the Anniversary Update as all of my
Windows 10 machines got updated already, but it is definitely works
another way in Windows 7.
The purpose of the VAD is to record audio from own software. Our
software uses a 3rd party component that outputs audio, that needs to be
recorded. The only control we have over this component is the ability to
specify which audio device to output audio to. So my VAD is never
purposed to be a default sound device, it is purposed to work with our
Basically things work fine, but recently we encountered an unexpected
behavior. If a user accidentally sets our VAD as the default sound
device then Windows 10 remembers this. If a user later changes the
default sound device to a real sound card then things work good until
VAD is re-installed. If the VAD is reinstalled then Windows recalls that
some day this device was set as a default and sets it to be default
automatically. OS reboot after uninstallation of VAD doesn't help. This
is TRUE if and only if VAD was set as a default device at least once.
This is a real problem because all audio on a computer disappears for a
I thought that Microsoft's policy was to never set the default sound
device automatically, only by the explicit user actions. It is true for
Windows 7, but it's not for Windows 10.
As soon as the policy changed, then probably there are new INF sections
or some API that could prohibit setting of my VAD as a default device?
Does anyone here know any information about it?
Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
URL to WDMAUDIODEV page: