You are using Internet Information Services 7 or 7.5 and you get an error trying to bring up a classic ASP page.

Server Error in Application "DEFAULT WEB SITE"

HTTP Error 404.3 - Not Found
The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map.

The problem is classic ASP is not installed by default with IIS 7 and above.

To install ASP support, in Windows 7 go to Control Panel, Programs. Under Programs and Features, click Turn Windows Features On or Off.

Under Internet Information Services, World Wide Web Services, Application Development Features, check the box for ASP.

You may need some of the other features as well depending on how you coded up your website.

See this article to turn on error messages for Classic Asp in IIS 7.

Here is a good page to find more information about Classic Asp on IIS 7 and 7.5.

http://learn.iis.net/page.aspx/559/running-classic-asp-applications-on-iis-70-and-iis-75/

By Andrew Weitzen, Bronze Inc. (c) 2010

Bronze is the publisher of several online Internet journals including: InternetHandholding.com, DomainNames.gs, DotNetNuke.bz, Programmer.bz, Software.vg, WebHosting.vg