Parameters to a document?

I am trying to write myself a little app that will stream line use of my MS Word by linking some frequently used templates (e.g., my fax cover page, client letters, etc.) with the record set I use to complete those template forms (i.e., my contact list in Outlook).

I have satisfactorily accessed my contact list and created the forms I need to gather input from the user as to what the variables are in his usage of the templates (i.e., which template, e.g., Fax Form, Letter Form, etc.) and data (i.e., who is the addressee).

At that point in the app I am using ShellExecute to launch the approproate template directly.

My problem is that I am having trouble passing those variables to the MS Word Templates.

Can I pass parameters to an MS Word Document?