Determining getting a handle on the Word Instance in the browser.

This was cross-posted on the Javascript side of the forums, but this might be something that needs the expertise of a Microsoft developer.

I am trying to get the handle on the embedded Word2003 instance that appears inline when opening a document in IE inside a frameset.

returns an error even when I can clearly see the Word instance displaying a document loaded into the <IFRAME> section of a page, and the WINWORD.EXE process running.

The documentation on this method says it will return the object, in this case the Application object for any running instances of Word. Am I completely doing this wrong, or is there something special about the IE-embedded Office objects?