I'm working on an application where several business applications are using
SharePoint as a document management system.  I have a need to take parameters
that are being passed from the applications a put them into documents that
are being generated from SharePoint.

I know that I can use InfoPath to create custom Data Information Panels for
the content types & MS-Word document templates, but my question is this:

Can I somehow dynamically (programmatically) store a "key" value in the
InfoPath form so that when the document opens in word I can use some code (in
the onload event I suppose) to go grab data that can "pre-populate" some of
the fields in the DIP?  Or more simply put, how can I get data into the
fields of the DIP  without the user having to enter them?

Any advice or suggestions are welcome.