I've configured a Missing Template Handler in IIS7 for BlueDragon but I continue to get a Server Error, 404 error page. How can I configure my custom Missing Template Handler to override the server's custom page?
In IIS Manager, choose Error Pages, located under the IIS configuration section. Highlight 404 Status Code and choose "Edit Feature Settings" in the far right frame. If Custom Errors is selected, this indicates that the Server will provide the Custom Error page and not BlueDragon. You should choose Details and your Missing Template Handler will be served when a 404 occurs.
If this does not help, see FAQ 374