Coauthorship

I am writing with the use of Microsoft word, a computerized Oxford English Dictionary in another window. In front of me, I have a copy of Foucault (oops I spelt it wrong, the office assistant in Microsoft word just changed it to the correct spelling for me) and Barthes. Later when this goes on the world wide web, with the help of frontpage, itís not going to be the boring linear black and white text it is now.  Question. Who is the author? The Microsoft programs or me? Any co-authors? The dictionary, Barthes and Foucault maybe.

With so many tools, where do I stand? What is my [the authorís] function?