title: (WCF Service) Toggle on/off discovery endpoint
body: <p>I'm developing a simple WCF-based application.</p>
  
  <p>My service is very simple, just 2 endpoints:
  1) The service
  2) updDiscovery </p>
  
  <pre><code>&lt;services&gt;
      &lt;service name="myService"&gt;
          &lt;endpoint address="http://192.168.1.18/service"/&gt;
          &lt;endpoint name="udpDiscovery" kind="udpDiscoveryEndpoint" endpointConfiguration="adhocDiscoveryEndpointConfiguration"/&gt;
      &lt;/service&gt;
  &lt;/services&gt;
  </code></pre>
  
  <p>It works great but I'd toggle on/off the discoverability of my service. 
  I tried to change the Enable parameter but it doesn't work. </p>
  
  <p>Can you help me please?</p>
  
  <p>Cheers
  Mauro</p>