COM Add In and Outlook 2000

I am Trying to create a COM Add-In for Outlook 2000. The Add In is designed to create a "CommandBarButton" on inspector window for messages. I don't want the "CommandBarButton" to appear on the main Explorer window. Does anyone know how this is done or has any sample code?

In case anyone is interested I finally worked out how this is done:
<Attached File:OlCmdBrBtnCODE.txt>