diff --git a/Setup/App.xaml.cs b/Setup/App.xaml.cs
deleted file mode 100644
index 9b81dea..0000000
--- a/Setup/App.xaml.cs
+++ /dev/null
@@ -1,77 +0,0 @@
-using System.Windows;
-using System.Windows.Media;
-using Microsoft.Win32;
-
-namespace DeskCoreSetup;
-
-public partial class App : Application
-{
-    protected override void OnStartup(StartupEventArgs e)
-    {
-        base.OnStartup(e);
-        bool uninstall = e.Args.Any(a => a.Equals("--uninstall", StringComparison.OrdinalIgnoreCase));
-        bool silent = e.Args.Any(a => a.Equals("/S", StringComparison.OrdinalIgnoreCase));
-        bool launch = e.Args.Any(a => a.Equals("/launch", StringComparison.OrdinalIgnoreCase));
-        var dirArg = e.Args.FirstOrDefault(a => a.StartsWith("/D=", StringComparison.OrdinalIgnoreCase))?.Substring(3);
-
-        // Stille Installation/Deinstallation für Skripte: DeskCore-Setup.exe /S [/D=Ordner]  bzw.  --uninstall /S
-        if (silent)
-        {
-            var progress = new Progress<(double, string)>(_ => { });
-            try
-            {
-                if (uninstall) Installer.Uninstall(removeData: false, progress);
-                else
-                {
-                    var dir = dirArg ?? Installer.InstalledDir ?? Installer.DefaultDir;
-                    Installer.Install(dir, desktopLink: Installer.InstalledDir is null || Installer.DesktopLinkExists,
-                        autostart: Installer.AutostartEnabled, progress, installRuntime: true);
-                    // nach einem Update aus DeskCore heraus: gleich wieder starten
-                    if (launch) System.Diagnostics.Process.Start(System.IO.Path.Combine(dir, Installer.ExeName));
-                }
-                Shutdown(0);
-            }
-            catch (Exception ex)
-            {
-                // ohne Oberfläche: Fehler für Skripte nachvollziehbar ablegen
-                try { System.IO.File.WriteAllText(System.IO.Path.Combine(System.IO.Path.GetTempPath(), "DeskCore-Setup.log"), $"[{DateTime.Now}] {ex}"); } catch { }
-                Shutdown(1);
-            }
-            return;
-        }
-
-        ApplyTheme();
-        new MainWindow(uninstall).Show();
-    }
-
-    /// <summary>Hell/Dunkel und Akzentfarbe wie in Windows eingestellt.</summary>
-    private void ApplyTheme()
-    {
-        bool light = ReadDword(@"Software\Microsoft\Windows\CurrentVersion\Themes\Personalize", "AppsUseLightTheme") != 0;
-        Resources.MergedDictionaries[0] = new ResourceDictionary
-        {
-            Source = new Uri($"pack://application:,,,/Themes/Colors.{(light ? "Light" : "Dark")}.xaml"),
-        };
-        int abgr = ReadDword(@"Software\Microsoft\Windows\DWM", "AccentColor") is var v and not -1 ? v : unchecked((int)0xFFD77800);
-        var accent = Color.FromRgb((byte)abgr, (byte)(abgr >> 8), (byte)(abgr >> 16));
-        var a = light ? Mix(accent, Colors.Black, 0.12) : Mix(accent, Colors.White, 0.45);
-        Resources["AccentBrush"] = new SolidColorBrush(a);
-        Resources["AccentHoverBrush"] = new SolidColorBrush(light ? Mix(a, Colors.White, 0.1) : Mix(a, Colors.Black, 0.1));
-        Resources["OnAccentBrush"] = new SolidColorBrush(light ? Colors.White : Colors.Black);
-        Resources["AccentSubtleBrush"] = new SolidColorBrush(Color.FromArgb(light ? (byte)0x22 : (byte)0x30, a.R, a.G, a.B));
-        Resources["AccentSubtleStrokeBrush"] = new SolidColorBrush(Color.FromArgb(light ? (byte)0x55 : (byte)0x60, a.R, a.G, a.B));
-    }
-
-    private static int ReadDword(string key, string name)
-    {
-        try
-        {
-            using var k = Registry.CurrentUser.OpenSubKey(key);
-            return k?.GetValue(name) is int i ? i : -1;
-        }
-        catch { return -1; }
-    }
-
-    private static Color Mix(Color c, Color with, double t) => Color.FromRgb(
-        (byte)(c.R + (with.R - c.R) * t), (byte)(c.G + (with.G - c.G) * t), (byte)(c.B + (with.B - c.B) * t));
-}