Using the rules wizard in Outlook 2003, I have been able to create a
rule that automatically replies to a sender that has specific words in
the subject using "have the server reply using a specific message" or
"reply using a specific template".

My problem is this:
I have a text file located on my local hard drive that is updated by
an excel spreadsheet every 15 minutes. When someone sends me an email
with specific words in the subject, I want to reply with the text file
either as an attachment or inline message (perferred). The issue I am
having is that the message specified by the server or the specified
template does not update the text file in the message. This results
in the message containing out-dated information in the text file. I
have researched this problem and I cannot locate a solution that
works.

How can a rule reply using a text file at the time of the rule
execution?

Any help would be greatly appreciated.