Abort Routing and continue with the original request in .NET

Question

I want to use routing for all incomming calls to my server and then only use the routing on some of these (depending on values in my database).

I know how routing is done, what I don't know is how to abort routing inside my IRouteHandler.

ex

if (routing) 
{
  // do routing 
    var page = BuildManager.CreateInstanceFromVirtualPath(VirtualPath, typeof(IHttpHandler)) as IHttpHandler;
    return page;
}
else 
{
  // proceed as if no routing has been made
}

Answer 1

Respone.Redirect()

Then you redirect them to a error or default page.

Answer 2

Found my answer:

http://stackoverflow.com/questions/278668/is-it-possible-to-make-an-asp-net-mvc-route-based-on-a-subdomain