<a href="http://www.windowsdevcenter.com/pub/a/windows/2004/03/09/ws_addons2.html">the second part</a> of the series. read the first one ages ago. also posted a links. The first one is <a href="http://www.windowsdevcenter.com/pub/a/windows/2004/02/24/ws_addons.html">here</a>.