title: SignalR send message to Clients from external application
body: <p>Is it possible to send a message to the clients connected to a Hub from another process? I set up LINQPad to reference my Hub project's DLL and set VS to attach debugging to the LINQPad process. My project has a HubNotification class that uses the following code:</p>
  
  <pre><code>dynamic clients = Hub.GetClients&lt;MyHubClass&gt;();
  clients.SendMessage("My Message");
  </code></pre>
  
  <p>When debugging I can see this code being called, but my connected clients never get sent a message. I have verified with Fiddler that there is nothing HTTP happening when the above code runs. Am I missing something or is this just not possible?</p>