Receive HTTP 404 error when running MessageStats on a Windows 2003 server running IIS 6.
To resolve this error IIS needs to be configured to permit content that requires a specific ISAPI or CGI extension that is already listed in the Web service extensions list.
Take the following steps:
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 needs to be enabled. In this example, this is Active Server Pages.
3. Check the Allow check box.