I am trying to install the web reports on a machine that has Windows SharePoint Services installed. Every time I try to access the web reports I get the error "HTTP Error 404 - File or directory not found"?

You will need to exclude the EventSentry ASP pages from SharePoint Services, which is intercepting requests to the EventSentry web reports.

Follow the first 6 steps in the KB article listed below to exclude the EventSentry web reports. The path necessary in step 5 is usually \EventSentry, or similar. You will need to point the exclusion to the virtual directory where EventSentry is installed.