Unable to browse the website after hosting in IIS 6.0

To help minimize the attack surface of the server, IIS 6.0 is not installed on Windows Server 2003 by default. When you first install IIS 6.0, it is locked down
— which means that only request handling for static Web pages is enabled, and only the World Wide Web Publishing Service (WWW service) is installed. None of the features that sit on top of IIS are turned on, including ASP, ASP.NET, CGI scripting, FrontPage® 2002 Server Extensions from Microsoft, and WebDAV publishing. If you do not enable these features, IIS returns a 404 error.  

1.In IIS Manager, click the Web Service Extensions folder.
2.In the details pane, select the Web service extension that you want to enable, and then click Allow.
3.To see the properties of a Web service extension, select an extension, and then click Properties.

Please see below, how to enable web service extention.