diff --git a/QuickLook.Common/Helpers/WindowHelper.cs b/QuickLook.Common/Helpers/WindowHelper.cs
index dc10205..c5eac6b 100644
--- a/QuickLook.Common/Helpers/WindowHelper.cs
+++ b/QuickLook.Common/Helpers/WindowHelper.cs
@@ -42,13 +42,15 @@ namespace QuickLook.Common.Helpers
                 new Size(screen.Width / scale.Horizontal, screen.Height / scale.Vertical));
         }
 
-        public static void BringToFront(this Window window)
+        public static void BringToFront(this Window window, bool keep)
         {
             var handle = new WindowInteropHelper(window).Handle;
             User32.SetWindowPos(handle, User32.HWND_TOPMOST, 0, 0, 0, 0,
                 User32.SWP_NOMOVE | User32.SWP_NOSIZE | User32.SWP_NOACTIVATE);
-            User32.SetWindowPos(handle, User32.HWND_NOTOPMOST, 0, 0, 0, 0,
-                User32.SWP_NOMOVE | User32.SWP_NOSIZE | User32.SWP_NOACTIVATE);
+
+            if (!keep)
+                User32.SetWindowPos(handle, User32.HWND_NOTOPMOST, 0, 0, 0, 0,
+                    User32.SWP_NOMOVE | User32.SWP_NOSIZE | User32.SWP_NOACTIVATE);
         }
 
         public static void MoveWindow(this Window window,
diff --git a/QuickLook/ViewerWindow.Actions.cs b/QuickLook/ViewerWindow.Actions.cs
index 1609a28..2523a5c 100644
--- a/QuickLook/ViewerWindow.Actions.cs
+++ b/QuickLook/ViewerWindow.Actions.cs
@@ -101,7 +101,7 @@ namespace QuickLook
                 if (double.IsNaN(Left) || double.IsNaN(Top)) // first time showing
                     WindowStartupLocation = WindowStartupLocation.CenterScreen;
 
-                Dispatcher.BeginInvoke(new Action(this.BringToFront), DispatcherPriority.Render);
+                Dispatcher.BeginInvoke(new Action(() => this.BringToFront(Topmost)), DispatcherPriority.Render);
             }
         }