Install virtual webcam legacy driver via command prompt

Aswin Bhaarat 1 Reputation point
2021-02-15T05:57:38.487+00:00

The drivers are generated from a piece of code that I have taken from AVStream Hardware Sample (Virtual camera loopback).

https://github.com/Microsoft/Windows-driver-samples/tree/master/avstream/avssamp

I am now trying to install it programmatically using devcon or pnputil but not able to find any batch command or programmatic way to install it. This seem to be a legacy driver. It only works via hdwwiz.exe legacy hardware wizard. My driver is signed properly so no issue there.

The method that works:

  1. C:\WINDOWS\System32\InfDefaultInstall.exe PATH-TO-INF -> I get a pop up after this saying operation successful, but is not listed under Cameras in device manager.
  2. Open Device Manager -> Add legacy hardware -> Next -> Install the hardware that I manually select from a list (Advanced) -> Cameras -> Next -> Select required camera -> Next
  3. Once the above two steps are done, the device is listed under Cameras in device manager, and also I am able to view the same under the list of cameras in applications like Zoom

C:\WINDOWS\System32\InfDefaultInstall.exe PATH-TO-INF -> this is equivalent to Step 1.
But step 2 is what I want to achieve using commands / programmatically.

The following are methods that I have tried:

  1. pnputil /add-driver <PATH-TO-INF> /install -> this adds the INF as oem*.inf but still not listed under cameras, still unusable
  2. devcon.exe install <PATH-TO-INF> ROOT\CAMERA\
  3. devcon.exe install PATH-TO-INF ROOT\CAMERA\0001
  4. devcon.exe /add-driver PATH-TO-INF
  5. devcon.exe install vibe.inf {CLASS-ID}\NameOfDriver

None of the above are helping me to the get result I want.
The drivers are generated from a piece of code that I have taken from AVStream Hardware Sample.

Is there a command in CMD that would help me get the result I want?

Thanks in advance,
Aswin

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  1. Jenny Feng 14,076 Reputation points
    2021-02-15T08:59:02.46+00:00

    Hi,
    I think this is difficult to achieve.
    In addition, here are some posts with the similar issue with yours, just for your reference, you can try the method mentioned in them:
    https://stackoverflow.com/questions/53864109/windows-driver-install-legacy-hardware-with-command-line-tool
    Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.
    Hope above information can help you.

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