Hi all! I have developed some audio signal processing features that I want to be able to demonstrate on any newer (XP and forward) OS versions and with any media player available (not just windows media player).The audio processing must be controlable for the user and the audio processing is intended for music and movie playback primarily.How can I do that? From what I have read, it seems I could achieve the above by inserting a filter into the audio driver stack. I believe this should be possible by implementing an AVStream driver. My first question: Is this correct? Follow up question? Is there is an easier way to achieve what I want? Can it for instance be done without any driver development? Best, Niaren Krasnik