diff --git a/Pilz.Updating.Client.GUI/UpdateClientGUI.cs b/Pilz.Updating.Client.GUI/UpdateClientGUI.cs
index 19e72de..b01759d 100644
--- a/Pilz.Updating.Client.GUI/UpdateClientGUI.cs
+++ b/Pilz.Updating.Client.GUI/UpdateClientGUI.cs
@@ -1,13 +1,16 @@
 using Pilz.UI;
 using Pilz.UI.Telerik.Dialogs;
 using Pilz.Updating.Client.Gui.LangRes;
-using Pilz.Updating.Client.GUI;
 using Telerik.WinControls;
 
 namespace Pilz.Updating.Client.Gui;
 
 public class UpdateClientGui
 {
+    // E v e n t s
+
+    public event UpdateEndedEventHandler OnUpdateEnded;
+
     // F i e l d s
 
     private Form parentForm;
@@ -16,7 +19,7 @@ public class UpdateClientGui
 
     // P r o p e r t i e s
 
-    public bool UseHiddenSearch { get; set; } = false;
+    public bool UseHiddenSearch { get; set; }
 
     private static Image MyAppIcon => Icon.ExtractAssociatedIcon(IO.Extensions.GetExecutablePath()).ToBitmap();
 
@@ -42,9 +45,15 @@ public class UpdateClientGui
     }
 
     private void EndUpdating()
+    {
+        EndUpdating(false);
+    }
+
+    private void EndUpdating(bool success)
     {
         curProgressDialog.AllowClose = true;
         curProgressDialog?.Invoke(curProgressDialog.Close);
+        OnUpdateEnded?.Invoke(this, new(success));
     }
 
     // E v e n t s
@@ -86,6 +95,8 @@ public class UpdateClientGui
         switch (e.Status)
         {
             case UpdateStatus.Done:
+                EndUpdating(true);
+                break;
             case UpdateStatus.Failed:
             case UpdateStatus.Canceled:
                 EndUpdating();
diff --git a/Pilz.Updating.Client.GUI/UpdatesAvailableDialog.Designer.cs b/Pilz.Updating.Client.GUI/UpdatesAvailableDialog.Designer.cs
index 8a22734..d912824 100644
--- a/Pilz.Updating.Client.GUI/UpdatesAvailableDialog.Designer.cs
+++ b/Pilz.Updating.Client.GUI/UpdatesAvailableDialog.Designer.cs
@@ -1,7 +1,7 @@
 using Microsoft.VisualBasic.CompilerServices;
 using System.Diagnostics;
 
-namespace Pilz.Updating.Client.GUI
+namespace Pilz.Updating.Client.Gui
 {
     [DesignerGenerated()]
     internal partial class UpdatesAvailableDialog
diff --git a/Pilz.Updating.Client.GUI/UpdatesAvailableDialog.cs b/Pilz.Updating.Client.GUI/UpdatesAvailableDialog.cs
index 4d3139d..eea63bc 100644
--- a/Pilz.Updating.Client.GUI/UpdatesAvailableDialog.cs
+++ b/Pilz.Updating.Client.GUI/UpdatesAvailableDialog.cs
@@ -5,7 +5,7 @@ using Pilz.Updating.Client.Gui.LangRes;
 using Pilz.Updating.GUIBase;
 using Telerik.WinControls.UI;
 
-namespace Pilz.Updating.Client.GUI;
+namespace Pilz.Updating.Client.Gui;
 
 internal partial class UpdatesAvailableDialog : RadFlyoutBase
 {
diff --git a/Pilz.Updating.Client.Gui/Delegates.cs b/Pilz.Updating.Client.Gui/Delegates.cs
new file mode 100644
index 0000000..73503e8
--- /dev/null
+++ b/Pilz.Updating.Client.Gui/Delegates.cs
@@ -0,0 +1,3 @@
+namespace Pilz.Updating.Client.Gui;
+
+public delegate void UpdateEndedEventHandler(object sender, UpdateEndedEventArgs e);
diff --git a/Pilz.Updating.Client.Gui/UpdateEndedEventArgs.cs b/Pilz.Updating.Client.Gui/UpdateEndedEventArgs.cs
new file mode 100644
index 0000000..376b2e1
--- /dev/null
+++ b/Pilz.Updating.Client.Gui/UpdateEndedEventArgs.cs
@@ -0,0 +1,6 @@
+namespace Pilz.Updating.Client.Gui;
+
+public class UpdateEndedEventArgs(bool success) : EventArgs
+{
+    public bool Success { get; } = success;
+}
diff --git a/Pilz.Updating.Client.Gui/UpdateWindow.Designer.cs b/Pilz.Updating.Client.Gui/UpdateWindow.Designer.cs
index 3a9f0e2..a7d675b 100644
--- a/Pilz.Updating.Client.Gui/UpdateWindow.Designer.cs
+++ b/Pilz.Updating.Client.Gui/UpdateWindow.Designer.cs
@@ -4,7 +4,7 @@ using System.Diagnostics;
 namespace Pilz.Updating.Client.Gui
 {
     [DesignerGenerated()]
-    public partial class UpdateWindow
+    internal partial class UpdateWindow
     {
 
         // Das Formular überschreibt den Löschvorgang, um die Komponentenliste zu bereinigen.
diff --git a/Pilz.Updating.Client.Gui/UpdateWindow.cs b/Pilz.Updating.Client.Gui/UpdateWindow.cs
index e0ec455..62fed37 100644
--- a/Pilz.Updating.Client.Gui/UpdateWindow.cs
+++ b/Pilz.Updating.Client.Gui/UpdateWindow.cs
@@ -4,7 +4,7 @@ using Telerik.WinControls;
 
 namespace Pilz.Updating.Client.Gui;
 
-public partial class UpdateWindow : Telerik.WinControls.UI.RadForm
+internal partial class UpdateWindow : Telerik.WinControls.UI.RadForm
 {
     // P r o p e r t i e s