Active X control ito send audio to the microphone captured from the speaker?

I am looking for a method to send audio to the microphone input using a Active X control embedded on a web page. This seems odd and backwards, but there is a reason.

As a simple example of the functionality we need, I load the web page with this control, then open a new page and open a sound file, and Skype (or any other app running) hears it as if I plugged the microphone into my speaker jack.

The intended operation is for a web server to send a mp3 file (or wav) to the web browser, and the browser plays it out the speakers using standard <Audio> tags or Quicktime/Microsoft media player. The sound is periodically updated via AJAX. The speaker output from Windows needs to be captured as sound streams, and sent back into the microphone so that other apps that may be open on the desktop will hear the sound.

I know that this is possible using a C# program, as I have seen it in use.

Does anyone know of a Audio ActiveX control that captures the speaker stream? I saw one years ago that claimed to do this, and after searching for hours, can't find it again.

I have no need to capture the microphone. I want to capture the speaker or application sound stream, and send that back into the microphone. An example program that does 'half of this' is called 'Soundleech'. It captures any sound being played and saves it as a wave file in a directory specific to the device that is playing.

SoundLeech

Can such a control be embedded into a second, custom Active X control that is in turn loaded by the web page to do this operation?

Or am I stuck with using a downloaded and pre-installed program?