asp.net not displaying a custom 404 page as configured

Question

in my web config I have:

<customErrors mode="On">
  <error statusCode="404" redirect="~/error/404.aspx" />
</customErrors>

http://localhost/meh <-- standard 404 is shown

http://localhost/meh.aspx <-- custom 404 is shown

http://localhost/error/404.aspx <-- the custom error page I want shown for all 404 errors

How do I have to setup my web.config to send all 404 to my custom error?

Thanks

Answer 1

You have to configure this in IIS. By default, only specific files will get routed through the ASP.NET framework... otherwise IIS will handle it.