diff --git a/app/App.xaml.cs b/app/App.xaml.cs
index 0fe7266..1f53516 100644
--- a/app/App.xaml.cs
+++ b/app/App.xaml.cs
@@ -55,27 +55,30 @@ namespace ParsecVDisplay
                 return;
             }
 
+            base.OnStartup(e);
+            LoadLanguages();
+
             var status = ParsecVDD.QueryStatus();
             if (status != Device.Status.OK)
             {
                 if (status == Device.Status.RESTART_REQUIRED)
                 {
-                    MessageBox.Show("You must restart your PC to complete the driver setup.",
+                    MessageBox.Show(GetTranslation("t_msg_must_restart_pc"),
                         NAME, MessageBoxButton.OK, MessageBoxImage.Warning);
                 }
                 else if (status == Device.Status.DISABLED)
                 {
-                    MessageBox.Show($"{ParsecVDD.ADAPTER} is disabled, please enable it.",
+                    MessageBox.Show(GetTranslation("t_msg_driver_is_disabled", ParsecVDD.ADAPTER),
                         NAME, MessageBoxButton.OK, MessageBoxImage.Warning);
                 }
                 else if (status == Device.Status.NOT_INSTALLED)
                 {
-                    MessageBox.Show("Please install the driver first.",
+                    MessageBox.Show(GetTranslation("t_msg_please_install_driver"),
                         NAME, MessageBoxButton.OK, MessageBoxImage.Warning);
                 }
                 else
                 {
-                    MessageBox.Show($"The driver is not OK, please check again. Current status: {status}.",
+                    MessageBox.Show(GetTranslation("t_msg_driver_status_not_ok", status),
                         NAME, MessageBoxButton.OK, MessageBoxImage.Warning);
                 }
 
@@ -85,7 +88,7 @@ namespace ParsecVDisplay
 
             if (ParsecVDD.Init() == false)
             {
-                MessageBox.Show("Failed to obtain the device handle, please check the driver installation again.",
+                MessageBox.Show(GetTranslation("t_msg_failed_to_obtain_handle"),
                     NAME, MessageBoxButton.OK, MessageBoxImage.Warning);
 
                 Shutdown();
@@ -100,9 +103,6 @@ namespace ParsecVDisplay
                 }
             });
 
-            base.OnStartup(e);
-            LoadLanguages();
-
             // Disable GPU to prevent flickering when adding display
             RenderOptions.ProcessRenderMode = RenderMode.SoftwareOnly;
         }
@@ -166,13 +166,16 @@ namespace ParsecVDisplay
             }
         }
 
-        public static string GetTranslation(string key)
+        public static string GetTranslation(string key, params object[] args)
         {
             try
             {
-                var trans = Current.FindResource(key);
-                if (trans != null && trans is string)
-                    return trans as string;
+                var translation = Current.FindResource(key);
+                if (translation != null && translation is string t)
+                {
+                    t = t.Replace("\\n", "\n");
+                    return string.Format(t, args);
+                }
             }
             catch
             {
diff --git a/app/Components/CustomPage.xaml.cs b/app/Components/CustomPage.xaml.cs
index 4bab266..2fc3ecf 100644
--- a/app/Components/CustomPage.xaml.cs
+++ b/app/Components/CustomPage.xaml.cs
@@ -39,7 +39,7 @@ namespace ParsecVDisplay.Components
                     // Check negative values & limit 8K resolution
                     if (width < 0 || width > 7680 || height < 0 || height > 4320 || hz < 0)
                     {
-                        MessageBox.Show($"Found invalid value in slot {i / 3 + 1}.",
+                        MessageBox.Show(App.GetTranslation("t_msg_custom_invalid_slot", i / 3 + 1),
                             App.NAME, MessageBoxButton.OK, MessageBoxImage.Warning);
                         return;
                     }
@@ -65,7 +65,7 @@ namespace ParsecVDisplay.Components
                     var args = $"-custom \"{Display.DumpModes(modes)}\" \"{parentGPU}\"";
                     if (Helper.RunAdminTask(args) == false)
                     {
-                        MessageBox.Show("Could not set custom resolutions, access denied!",
+                        MessageBox.Show(App.GetTranslation("t_msg_custom_access_denied"),
                             App.NAME, MessageBoxButton.OK, MessageBoxImage.Warning);
                         return;
                     }
diff --git a/app/Languages/en.xaml b/app/Languages/en.xaml
index 8c9233c..32dfd9f 100644
--- a/app/Languages/en.xaml
+++ b/app/Languages/en.xaml
@@ -11,7 +11,6 @@
     <system:String x:Key="t_custom">Custom...</system:String>
     <system:String x:Key="t_apply">Apply</system:String>
     <system:String x:Key="t_parent_gpu">Parent GPU</system:String>
-    <system:String x:Key="t_driver_status">Driver status</system:String>
     <system:String x:Key="t_language">Language</system:String>
 
     <!--Context menu-->
@@ -32,4 +31,22 @@
     <system:String x:Key="t_keep_screen_on">Keep screen on</system:String>
     <system:String x:Key="t_check_for_update">Check for update</system:String>
     <system:String x:Key="t_exit">Exit</system:String>
+    
+    <!--Dialog messages-->
+    <system:String x:Key="t_msg_up_to_date">Your app version is up-to-date.</system:String>
+    <system:String x:Key="t_msg_update_available">A new version — v{0} is available.\nTo keep your experience optimal, please update it now."</system:String>
+    
+    <system:String x:Key="t_msg_custom_access_denied">Could not apply custom resolutions, access denied!</system:String>
+    <system:String x:Key="t_msg_custom_invalid_slot">Found invalid value in slot #{0}.</system:String>
+
+    <system:String x:Key="t_msg_exceeded_display_limit">Could not add more virtual displays, you have exceeded the maximum number ({0}).</system:String>
+    <system:String x:Key="t_msg_prompt_leave_all">All added virtual displays will be unplugged.\nDo you still want to exit?.</system:String>
+
+    <system:String x:Key="t_msg_driver_status">Driver status</system:String>
+    <system:String x:Key="t_msg_must_restart_pc">You must restart your PC to complete the driver setup.</system:String>
+    <system:String x:Key="t_msg_driver_is_disabled">{0} is disabled, please enable it in Device Manager.</system:String>
+    <system:String x:Key="t_msg_please_install_driver">Please install the driver first.</system:String>
+    <system:String x:Key="t_msg_driver_status_not_ok">The driver is not OK, please check again. Current status: {0}.</system:String>
+    <system:String x:Key="t_msg_failed_to_obtain_handle">Failed to obtain the device handle, please check the driver installation again.</system:String>
+    
 </ResourceDictionary>
\ No newline at end of file
diff --git a/app/Languages/vi.xaml b/app/Languages/vi.xaml
index 9cdc547..177db56 100644
--- a/app/Languages/vi.xaml
+++ b/app/Languages/vi.xaml
@@ -34,6 +34,20 @@
     <system:String x:Key="t_exit">Thoát</system:String>
 
     <!--Dialog messages-->
-    <system:String x:Key="t_msg_">Thoát</system:String>
+    <system:String x:Key="t_msg_up_to_date">Bạn đang sử dụng phiên bản mới nhất.</system:String>
+    <system:String x:Key="t_msg_update_available">Có bản cập nhật mới — v{0}.\nHãy cập nhật ngay để trải nghiệm các tính năng mới."</system:String>
+
+    <system:String x:Key="t_msg_custom_access_denied">Không thể áp dụng độ phân giải tùy chỉnh, quyền truy cập bị từ chối!</system:String>
+    <system:String x:Key="t_msg_custom_invalid_slot">Giá trị không hợp lệ ở slot #{0}.</system:String>
+
+    <system:String x:Key="t_msg_exceeded_display_limit">Không thể cắm thêm màn hình ảo, bạn đã đạt đến con số giới hạn ({0}).</system:String>
+    <system:String x:Key="t_msg_prompt_leave_all">Tất cả màn hình ảo sẽ bị tháo bỏ.\nBạn có muốn thoát không?.</system:String>
+
+    <system:String x:Key="t_msg_driver_status">Trạng thái driver</system:String>
+    <system:String x:Key="t_msg_must_restart_pc">Bạn phải khởi động lại PC để driver hoạt động.</system:String>
+    <system:String x:Key="t_msg_driver_is_disabled">{0} đã bị vô hiệu, vui lòng bật nó trong Device Manager.</system:String>
+    <system:String x:Key="t_msg_please_install_driver">Vui lòng cài đặt driver trước.</system:String>
+    <system:String x:Key="t_msg_driver_status_not_ok">Driver không được OK, vui lòng kiểm tra lại. Trạng thái hiện tại: {0}.</system:String>
+    <system:String x:Key="t_msg_failed_to_obtain_handle">Không thể lấy 'device handle', vui lòng kiểm tra cài đặt driver và thử lại.</system:String>
 
 </ResourceDictionary>
\ No newline at end of file
diff --git a/app/MainWindow.xaml.cs b/app/MainWindow.xaml.cs
index 790262a..939ba2d 100644
--- a/app/MainWindow.xaml.cs
+++ b/app/MainWindow.xaml.cs
@@ -28,9 +28,6 @@ namespace ParsecVDisplay
             // setup tray context menu
             ContextMenu.DataContext = this;
             ContextMenu.Resources = App.Current.Resources;
-
-            Tray.Init(this, ContextMenu);
-            ContextMenu = null;
         }
 
         protected override void OnSourceInitialized(EventArgs e)
@@ -68,6 +65,9 @@ namespace ParsecVDisplay
         {
             Loaded -= Window_Loaded;
 
+            Tray.Init(this, ContextMenu);
+            ContextMenu = null;
+
             if (App.Silent)
                 Hide();
 
@@ -128,8 +128,7 @@ namespace ParsecVDisplay
         {
             if (ParsecVDD.DisplayCount >= ParsecVDD.MAX_DISPLAYS)
             {
-                MessageBox.Show(this,
-                    $"Could not add more virtual displays, you have exceeded the maximum number ({ParsecVDD.MAX_DISPLAYS}).",
+                MessageBox.Show(this, App.GetTranslation("t_msg_exceeded_display_limit", ParsecVDD.MAX_DISPLAYS),
                     Title, MessageBoxButton.OK, MessageBoxImage.Warning);
             }
             else
@@ -176,16 +175,15 @@ namespace ParsecVDisplay
             var status = ParsecVDD.QueryStatus();
             var version = ParsecVDD.QueryVersion();
 
-            MessageBox.Show(this,
-                $"Parsec Virtual Display v{version}\nDriver status: {status}",
+            MessageBox.Show(this, $"Parsec Virtual Display v{version}\n" +
+                $"{App.GetTranslation("t_msg_driver_status")}: {status}",
                 App.NAME, MessageBoxButton.OK, MessageBoxImage.Information);
         }
 
         private void ExitApp(object sender, EventArgs e)
         {
             if (ParsecVDD.DisplayCount > 0)
-                if (MessageBox.Show(this,
-                    "All added virtual displays will be unplugged.\nDo you still want to exit?",
+                if (MessageBox.Show(this, App.GetTranslation("t_msg_prompt_leave_all"),
                     App.NAME, MessageBoxButton.YesNo, MessageBoxImage.Warning) != MessageBoxResult.Yes)
                     return;
 
@@ -211,9 +209,7 @@ namespace ParsecVDisplay
             var newVersion = await Updater.CheckUpdate();
             if (!string.IsNullOrEmpty(newVersion))
             {
-                var ret = MessageBox.Show(this,
-                    $"A new version — v{newVersion} is available!\n" +
-                    $"To keep your experience optimal, please update it now.",
+                var ret = MessageBox.Show(this, App.GetTranslation("t_msg_update_available", newVersion),
                     App.NAME, MessageBoxButton.YesNo, MessageBoxImage.Question);
                 if (ret == MessageBoxResult.Yes)
                 {
@@ -222,7 +218,7 @@ namespace ParsecVDisplay
             }
             else if (sender != null)
             {
-                MessageBox.Show(this, "Your app version is up-to-date.",
+                MessageBox.Show(this, App.GetTranslation("t_msg_up_to_date"),
                     App.NAME, MessageBoxButton.OK, MessageBoxImage.Information);
             }