diff --git a/Stundensheet.xlsx b/Stundensheet.xlsx
index 37511ca7..ef74cb13 100644
Binary files a/Stundensheet.xlsx and b/Stundensheet.xlsx differ
diff --git a/nsw/Source/SendNSWMessageService/NSWSendService.cs b/nsw/Source/SendNSWMessageService/NSWSendService.cs
index e28ac5e1..e565b488 100644
--- a/nsw/Source/SendNSWMessageService/NSWSendService.cs
+++ b/nsw/Source/SendNSWMessageService/NSWSendService.cs
@@ -484,14 +484,18 @@ namespace SendNSWMessageService
 
                 }
 
-                bsmd.hisnord.transmitter.CallTransmitter(true);
-                bsmd.hisnord.transmitter.CallTransmitter(false); // wird aktuell nicht funktionieren
+                if(bsmd.hisnord.Properties.Settings.Default.ConnectTestSystem)                
+                    bsmd.hisnord.transmitter.CallTransmitter(true);
+                if(bsmd.hisnord.Properties.Settings.Default.ConnectLiveSystem)
+                    bsmd.hisnord.transmitter.CallTransmitter(false);
 
-                // ob test oder nicht ist in stat. dict gespeicher
-                bsmd.hisnord.Request.ReadResponseFiles();                                
+                // ob test oder nicht ist in stat. dict gespeichert
+                bsmd.hisnord.Request.ReadResponseFiles();
 
-                bsmd.hisnord.Response.ReadAnswers(true);
-                bsmd.hisnord.Response.ReadAnswers(false);
+                if (bsmd.hisnord.Properties.Settings.Default.ConnectTestSystem)
+                    bsmd.hisnord.Response.ReadAnswers(true);
+                if (bsmd.hisnord.Properties.Settings.Default.ConnectLiveSystem)
+                    bsmd.hisnord.Response.ReadAnswers(false);
 
                 List<MessageCore> coresMarkedForStatusQuery = DBManager.Instance.GetMessageCoresWithNSWStatusFlag();
 
diff --git a/nsw/Source/bsmd.database/Properties/AssemblyProductInfo.cs b/nsw/Source/bsmd.database/Properties/AssemblyProductInfo.cs
index d422bd48..77da0894 100644
--- a/nsw/Source/bsmd.database/Properties/AssemblyProductInfo.cs
+++ b/nsw/Source/bsmd.database/Properties/AssemblyProductInfo.cs
@@ -2,6 +2,6 @@
 
 [assembly: AssemblyCompany("schick Informatik")]
 [assembly: AssemblyProduct("BSMD NSW interface")]
-[assembly: AssemblyInformationalVersion("5.9.1")]
+[assembly: AssemblyInformationalVersion("5.9.2")]
 [assembly: AssemblyCopyright("Copyright ©  2014-2019 schick Informatik")]
 [assembly: AssemblyTrademark("")]
\ No newline at end of file
diff --git a/nsw/Source/bsmd.database/Properties/AssemblyProjectInfo.cs b/nsw/Source/bsmd.database/Properties/AssemblyProjectInfo.cs
index 8d5d1682..a9161850 100644
--- a/nsw/Source/bsmd.database/Properties/AssemblyProjectInfo.cs
+++ b/nsw/Source/bsmd.database/Properties/AssemblyProjectInfo.cs
@@ -1,4 +1,4 @@
 using System.Reflection;
 
-[assembly: AssemblyVersion("5.9.1.*")]
+[assembly: AssemblyVersion("5.9.2.*")]
 
diff --git a/nsw/Source/bsmd.hisnord/Properties/Settings.Designer.cs b/nsw/Source/bsmd.hisnord/Properties/Settings.Designer.cs
index 9cbc6cdd..243c3969 100644
--- a/nsw/Source/bsmd.hisnord/Properties/Settings.Designer.cs
+++ b/nsw/Source/bsmd.hisnord/Properties/Settings.Designer.cs
@@ -12,7 +12,7 @@ namespace bsmd.hisnord.Properties {
     
     
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "14.0.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.2.0.0")]
     public sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
         
         private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
@@ -130,5 +130,29 @@ namespace bsmd.hisnord.Properties {
                 this["LiveTransmitterRoot"] = value;
             }
         }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("False")]
+        public bool ConnectTestSystem {
+            get {
+                return ((bool)(this["ConnectTestSystem"]));
+            }
+            set {
+                this["ConnectTestSystem"] = value;
+            }
+        }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("True")]
+        public bool ConnectLiveSystem {
+            get {
+                return ((bool)(this["ConnectLiveSystem"]));
+            }
+            set {
+                this["ConnectLiveSystem"] = value;
+            }
+        }
     }
 }
diff --git a/nsw/Source/bsmd.hisnord/Properties/Settings.settings b/nsw/Source/bsmd.hisnord/Properties/Settings.settings
index def01398..35a943b2 100644
--- a/nsw/Source/bsmd.hisnord/Properties/Settings.settings
+++ b/nsw/Source/bsmd.hisnord/Properties/Settings.settings
@@ -29,5 +29,11 @@
     <Setting Name="LiveTransmitterRoot" Type="System.String" Scope="User">
       <Value Profile="(Default)" />
     </Setting>
+    <Setting Name="ConnectTestSystem" Type="System.Boolean" Scope="User">
+      <Value Profile="(Default)">False</Value>
+    </Setting>
+    <Setting Name="ConnectLiveSystem" Type="System.Boolean" Scope="User">
+      <Value Profile="(Default)">True</Value>
+    </Setting>
   </Settings>
 </SettingsFile>
\ No newline at end of file
diff --git a/nsw/Source/bsmd.hisnord/app.config b/nsw/Source/bsmd.hisnord/app.config
index 68e7f51b..72c489c2 100644
--- a/nsw/Source/bsmd.hisnord/app.config
+++ b/nsw/Source/bsmd.hisnord/app.config
@@ -34,6 +34,12 @@
             <setting name="LiveTransmitterRoot" serializeAs="String">
                 <value />
             </setting>
+            <setting name="ConnectTestSystem" serializeAs="String">
+                <value>False</value>
+            </setting>
+            <setting name="ConnectLiveSystem" serializeAs="String">
+                <value>True</value>
+            </setting>
         </bsmd.hisnord.Properties.Settings>
     </userSettings>
 </configuration>
\ No newline at end of file
diff --git a/nsw/Source/bsmd.hisnord/transmitter.cs b/nsw/Source/bsmd.hisnord/transmitter.cs
index fe3a0152..95362d4a 100644
--- a/nsw/Source/bsmd.hisnord/transmitter.cs
+++ b/nsw/Source/bsmd.hisnord/transmitter.cs
@@ -157,9 +157,16 @@ namespace bsmd.hisnord
                 try
                 {
                     XmlSerializer serializer = new XmlSerializer(typeof(result));
-                    using (FileStream fs = new FileStream(filename, FileMode.Open))
+                    if (!File.Exists(filename))
                     {
-                        aResult = (result)serializer.Deserialize(fs);
+                        _log.WarnFormat("Expected file {0} does not exist!", filename);
+                    }
+                    else
+                    {
+                        using (FileStream fs = new FileStream(filename, FileMode.Open))
+                        {
+                            aResult = (result)serializer.Deserialize(fs);
+                        }
                     }
                 }
                 catch (Exception ex)
@@ -169,8 +176,5 @@ namespace bsmd.hisnord
                 return aResult;
             }
         }
-
-		
-		
     }
 }