stevejay

<system.web>
    <httpRuntime relaxedUrlToFileSystemMapping="true"/>
    ...

stevejay

RouteTable.Routes.MapRoute(
    "NotFound-Catch-All",
    "{*any}",
    new { controller = "NotFound", action = "NotFound" });

stevejay

// To allow IIS to execute "/notfound" when requesting something which is disallowed,
// such as /bin or /app_data.

RouteTable.Routes.MapRoute(
    "NotFound",
    "notfound",
    new { controller = "NotFound", action = "NotFound" });

stevejay

routes.MapRoute(
    "Default",
    "{controller}/{action}/{id}",
    new {controller = "Home", action = "Index", id = UrlParameter.Optional});

stevejay

<error statusCode="404" subStatusCode="8" path="404.htm" />

stevejay

<system.web>
    <!-- For IIS 5 and 6, and the Visual Studio Development Server -->
    <httpHandlers>
        <add path="*" verb="*"
             type="MvcErrorHandling.MvcHelpers.CustomHttpNotFoundHandler"/>
    </httpHandlers>
</system.web>

...

stevejay

<system.web>
    <httpRuntime relaxedUrlToFileSystemMapping="true"/>
    ...

stevejay

return new HttpNotFoundResult();

stevejay

throw new HttpException((int)HttpStatusCode.NotFound, "A message");

stevejay

if (HttpRuntime.UsingIntegratedPipeline)
{
    // TransferRequest approach.
}
else
{
    // MvcHttpHandler approach.
}