Intercepting the audio from player before it reaches the real sound card

Question

I am trying to build an application for intercepting the audio from player before it reaches the real sound card and redirect the audio stream to RDP virtual channel so that

Answer 1

Another way would be using Stereo Mix in your recorder devices section of your windows. However it captures analog output from your sound card and you should stick this in your mind that it's analog, not digital. And yes I am searching to capture audio stream before reaching sound card just like you, so I hope if somebody knows how to do this, shares answer with us.