I wrote a WS router which routes the SOAP requests to a different web
services, regarding their header info.

The code is the modified example of  QuoteRouter2.0 project from the
ContentBasedRouter solution(WSE 2.0 examples).

protected override Uri ProcessRequestMessage(SoapEnvelope message)

{

XmlNodeList headersMatched =
message.Header.GetElementsByTagName("headerSender");

string myHeaderSender = headersMatched[0].InnerXml;

if  (headersMatched.Count != 0)

     return MyRoutingLogic (myHeaderSender.ToLower());

else

    return base.ProcessRequestMessage(message);

}

The router service generally works OK.

But I wan't to achieve the following:

- If the header is unknown (the else part of the above procedure),  the
user should receive a message like "Unknown header".

 I don't want default processing to be performed. (     return
base.ProcessRequestMessage(message);  )

How can this be achieved ? ( ProcessRequestMessage expects URI as a return
value )

Any help?

Thanks