Problem with Page Header in dynamically generated Word Doc

Hello

I am trying to generate a Word document dynamically from an ASPX (.NET)
page. It's all working fine except for the Page Header and Footer.

According to the documentation the MSO-HEADER directive can have either
a URL or a STRING value. If I try using URL (e.g.
mso-header:url("header.htm") h1;) and create the header and footer in
the Header page this causes an error when the word doc is generated
(because the word document doesn't exist it goes looking in the IE
Temporary folder).

I have tried several variations on mso-header:string("Page Header") h1;
- with and without the string directive - but to no avail.

Does anyone have any knowledge on this?

Regards
James