ASP website not running in Windows Server 2003 IIS6

I just moved some ASP websites to a new installed Windows Server 2003 with IIS 6 installed. When I visit the website, it gave me a 404 error which mean files not found. This is the most common problem with a new site under IIS 6.0. By default, IIS 6.0 is only allowed to serve static content. No ASP, no ASP.NET… so calls to ASP pages will actually trigger a 404 error.

This fix this:
1.    Open IIS Manager, expand the master server node (that is, the Servername node), and then select the Web service extensions node.
2.    In the right pane of IIS Manager, right-click the extension that you want to enable. In this example, this is Active Server Pages.
3.    Click to select the Allow check box.