Your post is useful, but this is not what I am looking for.
I'm trying to output the SAME stream through digital output (to home cinema) and Analog output (to other speakers through 3.5 mm port) simultaneously.
The thing is I have a home cinema in one room, and analog speakers in other room. And I'm trying to output some song, or any audio stream to home cinema with digital, and speakers with analog output.
This was possible on XP. Moreover it was the default. The stream was ALWAYS output through both analog and digital port, unless the stream was compressed 5.1 (DTS or AC3) when you could only output through digital out.