Let us assume you have created an .asp file called error404page.asp, which is customized to handle HTTP 404 errors. When a visitor to your site tries to access a page that does not exist on your server, say a page called missedpage.asp, then the ASP file will be invoked as if the user had typed:‘http://www.example.com/error404page.asp?404;http://www.example.com/missedpage.asp’ in the Web browser.
From the information with the above query string, "404;http://www.example.com/missedpage.asp", we can show the user the page they have requested, and send instant information to the administrator. Let us see how this can be done. Read more...
