// IDispatchMessageInspector Members

public object AfterReceiveRequest(ref System.ServiceModel.Channels.Message request, IClientChannel channel, InstanceContext instanceContext)
{
  Console.WriteLine("AfterReceiveRequest called.");
  return null;
}

public void BeforeSendReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
{
  Console.WriteLine("BeforeSendReply called.");
}

// IEndpointBehavior Members
public void AddBindingParameters(ServiceEndpoint serviceEndpoint, System.ServiceModel.Channels.BindingParameterCollection bindingParameters)
{
  return;
}

public void ApplyClientBehavior(ServiceEndpoint serviceEndpoint, ClientRuntime behavior)
{
  throw new Exception("The EndpointBehaviorMessageInspector is not used in client applications.");
}

public void ApplyDispatchBehavior(ServiceEndpoint serviceEndpoint, EndpointDispatcher endpointDispatcher)
{
  endpointDispatcher.DispatchRuntime.MessageInspectors.Add(new EndpointBehaviorMessageInspector());
}

public void Validate(ServiceEndpoint serviceEndpoint)
{
  return;
}

// BehaviorExtensionElement members
public override Type BehaviorType
{
  get { return typeof(EndpointBehaviorMessageInspector); }
}

protected override object CreateBehavior()
{
  return new EndpointBehaviorMessageInspector();
}

<configuration>
  <system.serviceModel>
    <services>
      <service 
        name="Microsoft.WCF.Documentation.SampleService"
        behaviorConfiguration="metadataSupport"
      >
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8080/ServiceMetadata" />
          </baseAddresses>
        </host>
        <endpoint
          address="/SampleService"
          binding="wsHttpBinding"
          behaviorConfiguration="withMessageInspector" 
          contract="Microsoft.WCF.Documentation.ISampleService"
        />
        <endpoint
           address="mex"
           binding="mexHttpBinding"
           contract="IMetadataExchange"
        />
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
      <behavior name="metadataSupport">
        <serviceMetadata httpGetEnabled="true" httpGetUrl=""/>
      </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name="withMessageInspector">
          <endpointMessageInspector />
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <extensions>
      <behaviorExtensions>
        <add 
          name="endpointMessageInspector"
          type="Microsoft.WCF.Documentation.EndpointBehaviorMessageInspector, HostApplication, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null"
        />
      </behaviorExtensions>
    </extensions>
  </system.serviceModel>
</configuration>