Symptom(s):
  • Audio can be heard on PC and ViewBoard.
  • When selecting Line 1 (Virtual Audio Cable) as the output device no audio on ViewBoard
Issue:


When installing the latest version v.3.3.1218 of vCastSender the Eshare Audio Card program is not updating to v1.0.1


This can be verified in Apps & Features section 



Graphical user interface, application 
Description automatically generated



Reason:
  • EndPoint Protection Application like Cylance or CrowdStrike is blocking the program that installs/update the program from running.


Workaround:
  1. Go to the directory where vCastSender is installed. By default C:\Program Files (x86)\ViewSonic\vCastSender
  2. Run VirtualAudioCable.exe file
Once the EShare Audio Card app is updated to 1.0.1, selecting Line 1 (Virtual Audio Cable) as the audio output device will play audio only on the ViewBoard.