diff -r 1a85ec255882 -r e3d394dd0388 Server/Servers.cs
--- a/Server/Servers.cs	Tue Aug 12 21:27:35 2014 +0200
+++ b/Server/Servers.cs	Wed Aug 13 23:02:40 2014 +0200
@@ -1,6 +1,7 @@
 using System;
 using System.Windows.Forms;
 using System.Collections;
+using System.ServiceModel;
 
 namespace SharpDisplayManager
 {
@@ -8,6 +9,7 @@
     /// Implement our display service.
     /// This class is instantiated anew whenever a client send a request.
     /// </summary>
+    [ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Reentrant)]
     class DisplayServer : IDisplayService
     {
         //From IDisplayService
@@ -41,6 +43,13 @@
                 }
         }
 
+        //
+        public void Connect(string aClientName)
+        {
+            IDisplayServiceCallback callback = OperationContext.Current.GetCallbackChannel<IDisplayServiceCallback>();
+            callback.OnConnected();
+        }
+
     }
 
 }