Index: dam engine/trunk/src/Deltares.DamEngine.Interface/EngineInterface.cs
===================================================================
diff -u -r461 -r465
--- dam engine/trunk/src/Deltares.DamEngine.Interface/EngineInterface.cs	(.../EngineInterface.cs)	(revision 461)
+++ dam engine/trunk/src/Deltares.DamEngine.Interface/EngineInterface.cs	(.../EngineInterface.cs)	(revision 465)
@@ -149,10 +149,11 @@
         /// Runs this instance.
         /// </summary>
         /// <returns>Errors and warnings in an XML string</returns>
-        public string Run()
+        public string Run(out string outputXml)
         {
-            SendMessage(new LogMessage() { MessageType = LogMessageType.Info, Message = "Start calcualtion" });
-            SendMessage(new LogMessage() { MessageType = LogMessageType.Info, Message = "End calcualtion" });
+            SendMessage(new LogMessage() { MessageType = LogMessageType.Info, Message = "Start calculation" });
+            SendMessage(new LogMessage() { MessageType = LogMessageType.Info, Message = "End calculation" });
+            outputXml = null;
             return null;
         }