diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index 6ee91984..5516d519 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -1008,6 +1008,7 @@
     </EmbeddedResource>
     <EmbeddedResource Include="Strings\arcStrings.ru-RU.resx" />
   </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
     <PreBuildEvent>perl "$(SolutionDir)inc-revision.pl" "$(ProjectPath)" $(ConfigurationName)
diff --git a/ArcFormats/Properties/Settings.Designer.cs b/ArcFormats/Properties/Settings.Designer.cs
index 8360601c..e4aef5bc 100644
--- a/ArcFormats/Properties/Settings.Designer.cs
+++ b/ArcFormats/Properties/Settings.Designer.cs
@@ -705,5 +705,17 @@ namespace GameRes.Formats.Properties {
                 this["RCTApplyMask"] = value;
             }
         }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("True")]
+        public bool UpgradeRequired {
+            get {
+                return ((bool)(this["UpgradeRequired"]));
+            }
+            set {
+                this["UpgradeRequired"] = value;
+            }
+        }
     }
 }
diff --git a/ArcFormats/Properties/Settings.cs b/ArcFormats/Properties/Settings.cs
index d3dcb774..7b83795c 100644
--- a/ArcFormats/Properties/Settings.cs
+++ b/ArcFormats/Properties/Settings.cs
@@ -19,18 +19,6 @@ namespace GameRes.Formats.Properties {
             //
             // this.SettingsSaving += this.SettingsSavingEventHandler;
             //
-
-            if (null != Application.Current)
-            {
-                Application.Current.Dispatcher.BeginInvoke (DispatcherPriority.Normal, new Action(() => {
-                    Application.Current.Exit += ApplicationExitHandler;
-                }));
-            }
-        }
-
-        void ApplicationExitHandler (object sender, System.Windows.ExitEventArgs args)
-        {
-            Default.Save();
         }
         
         private void SettingChangingEventHandler(object sender, System.Configuration.SettingChangingEventArgs e) {
diff --git a/ArcFormats/Properties/Settings.settings b/ArcFormats/Properties/Settings.settings
index 7dc1121d..48c76550 100644
--- a/ArcFormats/Properties/Settings.settings
+++ b/ArcFormats/Properties/Settings.settings
@@ -173,5 +173,8 @@
     <Setting Name="RCTApplyMask" Type="System.Boolean" Scope="User">
       <Value Profile="(Default)">True</Value>
     </Setting>
+    <Setting Name="UpgradeRequired" Type="System.Boolean" Scope="User">
+      <Value Profile="(Default)">True</Value>
+    </Setting>
   </Settings>
 </SettingsFile>
\ No newline at end of file
diff --git a/ArcFormats/ResourceSettings.cs b/ArcFormats/ResourceSettings.cs
index 856a5e6e..c1652dff 100644
--- a/ArcFormats/ResourceSettings.cs
+++ b/ArcFormats/ResourceSettings.cs
@@ -3,6 +3,8 @@
 //! \brief      Persistent resource settings implementation.
 //
 
+using System.ComponentModel.Composition;
+
 namespace GameRes.Formats
 {
     internal class LocalResourceSetting : ResourceSettingBase
@@ -12,4 +14,23 @@ namespace GameRes.Formats
             set { Properties.Settings.Default[Name] = value; }
         }
     }
+
+    [Export(typeof(ISettingsManager))]
+    internal class SettingsManager : ISettingsManager
+    {
+        public void UpgradeSettings ()
+        {
+            if (Properties.Settings.Default.UpgradeRequired)
+            {
+                Properties.Settings.Default.Upgrade();
+                Properties.Settings.Default.UpgradeRequired = false;
+                Properties.Settings.Default.Save();
+            }
+        }
+
+        public void SaveSettings ()
+        {
+            Properties.Settings.Default.Save();
+        }
+    }
 }
diff --git a/ArcFormats/app.config b/ArcFormats/app.config
index 95837a08..a39c7467 100644
--- a/ArcFormats/app.config
+++ b/ArcFormats/app.config
@@ -175,6 +175,9 @@
             <setting name="RCTApplyMask" serializeAs="String">
                 <value>True</value>
             </setting>
+            <setting name="UpgradeRequired" serializeAs="String">
+                <value>True</value>
+            </setting>
         </GameRes.Formats.Properties.Settings>
     </userSettings>
 <startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6"/></startup></configuration>