IAudioSessionEventsHandler.OnStateChanged is not firing when use it in windows service.

[rydenlabs]

Hi, Can someone please help here!
I am trying to use IAudioSessionEventsHandler.OnStateChanged on audio devices attached. This method fires and works fine when I use it in console application/wpf application but the same code does not work when I use it in windows service.

Is there a restriction in NAudio libraries when it comes to windows service application? If not what am I missing?