Index: Application/Application.Ringtoets/App.xaml.cs
===================================================================
diff -u -r78a113ae4b3a1cd879ff171bed5e5562bf13a62e -rc12ff7f28c27dd40613a002c2053f6457f40854a
--- Application/Application.Ringtoets/App.xaml.cs	(.../App.xaml.cs)	(revision 78a113ae4b3a1cd879ff171bed5e5562bf13a62e)
+++ Application/Application.Ringtoets/App.xaml.cs	(.../App.xaml.cs)	(revision c12ff7f28c27dd40613a002c2053f6457f40854a)
@@ -2,15 +2,13 @@
 using System.Collections.Generic;
 using System.Configuration;
 using System.Diagnostics;
-using System.Globalization;
 using System.IO;
 using System.Linq;
 using System.Reflection;
 using System.Threading;
 using System.Windows;
 using System.Windows.Controls.Primitives;
 using System.Windows.Forms;
-using System.Windows.Markup;
 using Core.Common.Base;
 using Core.Common.Base.Workflow;
 using Core.Common.Controls.Swf;
@@ -61,11 +59,6 @@
         {
             RingtoetsApplication.SetLanguageAndRegionalSettions(Settings.Default);
 
-            FrameworkElement.LanguageProperty.OverrideMetadata(
-                typeof(FrameworkElement),
-                new FrameworkPropertyMetadata(
-                    XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag)));
-
             log.Info(Core.Common.Gui.Properties.Resources.App_App_Starting_Ringtoets____);
         }
 
Index: Core/Common/src/Core.Common.Base/RingtoetsApplication.cs
===================================================================
diff -u -r399729e0e6586b50d1b3987d3e28322c35901698 -rc12ff7f28c27dd40613a002c2053f6457f40854a
--- Core/Common/src/Core.Common.Base/RingtoetsApplication.cs	(.../RingtoetsApplication.cs)	(revision 399729e0e6586b50d1b3987d3e28322c35901698)
+++ Core/Common/src/Core.Common.Base/RingtoetsApplication.cs	(.../RingtoetsApplication.cs)	(revision c12ff7f28c27dd40613a002c2053f6457f40854a)
@@ -202,8 +202,6 @@
             // load all assemblies from current assembly directory
             AssemblyUtils.LoadAllAssembliesFromDirectory(Path.GetFullPath(Path.GetDirectoryName(GetType().Assembly.Location))).ToList();
 
-            SetLanguageAndRegionalSettions();
-
             //Disabled trace logging this causes focus bugs combined with avalon dock (KeyPreview debug messages)
             //InitializeLogging();
 
Index: Core/Common/src/Core.Common.Gui/Forms/MainWindow/MainWindow.xaml.cs
===================================================================
diff -u -r12b208bce52521e35c10a94241698529f1594b6f -rc12ff7f28c27dd40613a002c2053f6457f40854a
--- Core/Common/src/Core.Common.Gui/Forms/MainWindow/MainWindow.xaml.cs	(.../MainWindow.xaml.cs)	(revision 12b208bce52521e35c10a94241698529f1594b6f)
+++ Core/Common/src/Core.Common.Gui/Forms/MainWindow/MainWindow.xaml.cs	(.../MainWindow.xaml.cs)	(revision c12ff7f28c27dd40613a002c2053f6457f40854a)
@@ -86,8 +86,6 @@
 
         public MainWindow(RingtoetsGui gui)
         {
-            RingtoetsApplication.SetLanguageAndRegionalSettions(Properties.Settings.Default);
-
             Gui = gui;
 
             InitializeComponent();