SSRS 2005 Subscription with Windows File Share option & after that send automated email once file saved?

Hi, I have SSRS 2005 subscription with "Windows File Share" option which save excel render report (size 500MB) to a given drive location. I don't want to use email as subscription option because of larger file size issue. What I want to do is send an AUTOMATED email to users once this file saved successfully to given file path and email body or header must have "File Name" & "File Location" in it.

Any workaround / idea for this? Thanks.