The macro should reside in the template from which you create the new
document. It will then be available for use with the document.
Alternatively, if the macro resides in a template that is stored in the Word
Startup folder, that template will be loaded as an addin when Word is
started and the macros in it will be available for use with all documents.

Signature
Hope this helps.
Please reply to the newsgroup unless you wish to avail yourself of my
services on a paid consulting basis.
Doug Robbins - Word MVP
Help?
I am writing an application to create a Word document - this document needs
the support of a macro to manipulate Style definitions.
How can my application create a new Macro in the Word document I am
creating? I have looked through the VBA reference for Microsoft Word, but I
don't see any place to add a Macro to the document.
Thanks,
-jdc