Well thanks for taking the time to respond to my question. I can first say that I am not having an XY Problem but thanks for that link it is much appreciated.
Now on to answering your questions. Your searching on CPAN for ESRI returned nothing because ESRI is a company ESRI they provide an automation interface to their product through COM. For a explanation of COM CLICK HERE.
On the Dual Interface question this is common terminology in the COM world. You can certainly read about that BY CLICKING HERE.
For the Adapter that I downloaded ADAPTER it is free and this provides late bounding support to COM objects which do not support IDispatch, which is the overall goal of my excersise. Sorry if my original post was unclear I assumed anyone that would respond would have a solid understanding of COM Automation.
Thanks Again for your time,
Mike