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USB headset with microphone does not work with PCoIP (1026879)

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  • When using the PCoIP protocol, a USB headset with microphone gets redirected to a Virtual Desktop initially, but fail to redirect when it is disconnected and reconnected in the same session. 
  • The USB device appears in the Connect USB Device tab.
  • You see USB Composite Device (a device in use by VMware View Client) in Device Manager of the physical machine.
  • If you disconnect the device and log off from the virtual machine, you see the error:

    'USB Composite Device' not in use by VMware View Client.

  • If you reconnect to the virtual machine and try to connect the USB audio device, you see this error in the Windows Device Manager: 

    USB Composite Device (device in use by VMware View Client)

  • If you try to reconnect to the virtual machine, and try to connect the USB audio device, you receive this error from the VMware View client:

    Unable to forward '<USB Audio Device Name>' device. Device may be in use by another application.

  • In the Windows Device Manager on the local host, you see the error:

    'USB Composite Device' is not used by VMware View Client.


When you reconnect a USB Audio device to a View desktop via a PCoIP session, the device maintains its association to the VMware View Client, and does not redirect in any future sessions.
Note: This workaround needs to be performed on the physical device (the device into which you are plugging the USB peripheral).

Set a different device as the default audio device in Windows.

For Windows Vista and Windows 7

  1. Click Start > Control Panel.
  2. Click Hardware and Sound.
  3. Under Sound, click Manage audio devices.
  4. Click Recording.
  5. Select a different device.
  6. Click Set Default.
  7. Click OK.

For Windows XP

  1. Click Start > Control Panel.
  2. Click Sounds, Speech, and Audio Devices.
  3. Clcik Sounds and Audio Devices.
  4. Click Audio.
  5. In Sound recording, select a different device as the Default device.
  6. Click OK.
If the device still is not being redirected to the virtual machine, perform these steps:
  1. Physically disconnect the device from the USB port.
  2. Reinsert the device into the USB port.
  3. Click Start > Run.
  4. Type devmgmt.msc on the physical machine.
  5. Click OK to open the Windows Device Manager.
  6. Press F5 in the Device Manager screen.
  7. Search for the device in the list of installed devices to ensure that the device is installed.
  8. Uninstall the device from Device Manager.
  9. Physically disconnect the device from the USB port again.
  10. Reinsert the device into the USB port.

Additional Information

Alternatively, to work around this issue performing one of these options:

  • Manually adding this registry key to the Client computer registry:

    REG_DWORD pcoip.enable_audio=0 in HKLM\Software\Policies\Teradici\PCoIP\pcoip_admin_defaults\

  • Using the Global Policy Objects (GPO) setting:
    1. Add pcoip.adm to Client.
    2. Enable the Enable/Disable audio in the PCoIP session option, then select Disable audio in PCoIP sessions.


usb-redirection  pcoip-microphone-not-working

See Also

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.


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