How do I OLE Script a plug-in?

I really just want to save 1000 pdf to html. 

I'm current using the OLE server on Windows thru Matlab.  I can load and open a document just fine.  however, I want to open a document and then call SaveAsHTML.  I can open an AformAut.App object but can't figure out how to "bind" it to the AVDoc.  The API reference seems to indicate that this is done automatically, but when I call myAformAutObj.Fields.ExportAsHtml('myfilename'), its just an empty html file.  How do I manually link the plugin to the doc?

Best regards,

John