Access Rights to Word Template

[cbanks]

I have written a Web Application in VB.Net 2003 that I need to perform
a mail merge on. I have been able to sucessfully collect the data and
write it to a file on my website using XSLTransform. I also have been
able to upload that file to a directory on my developement computer and
save it as a .rtf file for a data source. My problem is I have a Word
Template in that directory setup for the merge. When I try to open the
template I get the following error:
'ASP.NET is not authorized to access the requested resource. Consider
granting access rights to the resource to the ASP.NET request
identity'.

I have both ASP.net and IUSR_computername accounts set with full
access. Would some one please tell me what security I need to have for
this to work?

Thanks
Charles