diff --git a/QuickLook/App.config b/QuickLook/App.config
index 0bd1fab..62ee605 100644
--- a/QuickLook/App.config
+++ b/QuickLook/App.config
@@ -1,10 +1,25 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <configuration>
+  <configSections>
+    <sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
+      <section name="QuickLook.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
+    </sectionGroup>
+  </configSections>
   <startup>
     <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2" />
   </startup>
   <runtime>
     <legacyCorruptedStateExceptionsPolicy enabled="true" />
   </runtime>
+  <userSettings>
+    <QuickLook.Properties.Settings>
+      <setting name="Upgraded" serializeAs="String">
+        <value>True</value>
+      </setting>
+      <setting name="LastUpdate" serializeAs="String">
+        <value>2017-01-01</value>
+      </setting>
+    </QuickLook.Properties.Settings>
+  </userSettings>
 </configuration>
\ No newline at end of file
diff --git a/QuickLook/App.xaml.cs b/QuickLook/App.xaml.cs
index 2931365..d5dc988 100644
--- a/QuickLook/App.xaml.cs
+++ b/QuickLook/App.xaml.cs
@@ -20,9 +20,11 @@ using System.IO;
 using System.Linq;
 using System.Reflection;
 using System.Threading;
+using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Threading;
 using QuickLook.Helpers;
+using QuickLook.Properties;
 
 namespace QuickLook
 {
@@ -68,6 +70,8 @@ namespace QuickLook
                 return;
             }
 
+            UpgradeSettings();
+            CheckUpdate();
             RunListener(e);
 
             // first instance: run and preview this file
@@ -75,6 +79,26 @@ namespace QuickLook
                 RemoteCallShowPreview(e);
         }
 
+        private void CheckUpdate()
+        {
+            if (DateTime.Now - Settings.Default.LastUpdate < TimeSpan.FromDays(7))
+                return;
+
+            Task.Delay(120 * 1000).ContinueWith(_ => Updater.CheckForUpdates(true));
+            Settings.Default.LastUpdate = DateTime.Now;
+            Settings.Default.Save();
+        }
+
+        private void UpgradeSettings()
+        {
+            if (!Settings.Default.Upgraded)
+                return;
+
+            Settings.Default.Upgrade();
+            Settings.Default.Upgraded = false;
+            Settings.Default.Save();
+        }
+
         private void RemoteCallShowPreview(StartupEventArgs e)
         {
             PipeServerManager.SendMessage(e.Args.First());
diff --git a/QuickLook/Converters/BooleanTrueToVisibilityCollapsedConverter.cs b/QuickLook/Converters/BooleanToVisibilityConverter.cs
similarity index 85%
rename from QuickLook/Converters/BooleanTrueToVisibilityCollapsedConverter.cs
rename to QuickLook/Converters/BooleanToVisibilityConverter.cs
index bd3bb62..fe3c074 100644
--- a/QuickLook/Converters/BooleanTrueToVisibilityCollapsedConverter.cs
+++ b/QuickLook/Converters/BooleanToVisibilityConverter.cs
@@ -22,16 +22,16 @@ using System.Windows.Data;
 
 namespace QuickLook.Converters
 {
-    public sealed class BooleanTrueToVisibilityCollapsedConverter : DependencyObject, IValueConverter
+    public sealed class BooleanToVisibilityConverter : DependencyObject, IValueConverter
     {
         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
         {
             if (value == null)
-                return Visibility.Collapsed;
+                return Visibility.Visible;
 
             var v = (bool) value;
 
-            return v ? Visibility.Collapsed : Visibility.Visible;
+            return v ? Visibility.Visible : Visibility.Collapsed;
         }
 
         object IValueConverter.ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
diff --git a/QuickLook/MainWindowTransparent.xaml b/QuickLook/MainWindowTransparent.xaml
index f4578eb..e482b99 100644
--- a/QuickLook/MainWindowTransparent.xaml
+++ b/QuickLook/MainWindowTransparent.xaml
@@ -18,6 +18,7 @@
     <Window.Resources>
         <converters:BooleanToResizeModeConverter x:Key="BooleanToResizeModeConverter" />
         <converters:BooleanToResizeBorderThicknessConverter x:Key="BooleanToResizeBorderThicknessConverter" />
+        <converters:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
     </Window.Resources>
     <Window.ResizeMode>
         <Binding Converter="{StaticResource BooleanToResizeModeConverter}" ElementName="mainWindow"
@@ -59,7 +60,32 @@
                 <DockPanel x:Name="titlebar" Height="28" Dock="Top">
                     <fa:ImageAwesome DockPanel.Dock="Right" x:Name="buttonCloseWindow" Icon="TimesCircle"
                                      WindowChrome.IsHitTestVisibleInChrome="True"
-                                     Width="15" Height="15" Margin="10,0" Foreground="Gray"
+                                     Width="15" Height="15" Margin="5,0,10,0" Foreground="Gray"
+                                     Cursor="Hand" />
+                    <fa:ImageAwesome DockPanel.Dock="Right" x:Name="buttonWindowStatus"
+                                     WindowChrome.IsHitTestVisibleInChrome="True"
+                                     Width="14" Height="14" Margin="5,0,5,0" Foreground="Gray"
+                                     Visibility="{Binding ContextObject.CanResize,ElementName=mainWindow,Converter={StaticResource BooleanToVisibilityConverter}}"
+                                     Cursor="Hand">
+                        <fa:ImageAwesome.Style>
+                            <Style TargetType="{x:Type fa:ImageAwesome}">
+                                <Setter Property="Icon" Value="WindowMaximize" />
+                                <Style.Triggers>
+                                    <DataTrigger Binding="{Binding WindowState, ElementName=mainWindow}"
+                                                 Value="Maximized">
+                                        <Setter Property="Icon" Value="WindowRestore" />
+                                    </DataTrigger>
+                                    <DataTrigger Binding="{Binding WindowState, ElementName=mainWindow}"
+                                                 Value="Normal">
+                                        <Setter Property="Icon" Value="WindowMaximize" />
+                                    </DataTrigger>
+                                </Style.Triggers>
+                            </Style>
+                        </fa:ImageAwesome.Style>
+                    </fa:ImageAwesome>
+                    <fa:ImageAwesome DockPanel.Dock="Right" x:Name="buttonShare" Icon="ShareAlt"
+                                     WindowChrome.IsHitTestVisibleInChrome="True"
+                                     Width="14" Height="14" Margin="10,0,5,0" Foreground="Gray"
                                      Cursor="Hand" />
                     <Button x:Name="buttonOpenWith" DockPanel.Dock="Right" Content="Open with..." Height="20"
                             Margin="10,0,0,0" Padding="5,0"
@@ -101,7 +127,7 @@
                     <Grid x:Name="titleArea" Background="Transparent">
                         <TextBlock Text="{Binding ContextObject.Title, ElementName=mainWindow}" FontSize="14"
                                    HorizontalAlignment="Center"
-                                   VerticalAlignment="Center" />
+                                   VerticalAlignment="Center" Margin="5,0" />
                     </Grid>
                 </DockPanel>
                 <Grid>
diff --git a/QuickLook/MainWindowTransparent.xaml.cs b/QuickLook/MainWindowTransparent.xaml.cs
index 0fa6f76..61dcd5a 100644
--- a/QuickLook/MainWindowTransparent.xaml.cs
+++ b/QuickLook/MainWindowTransparent.xaml.cs
@@ -76,6 +76,12 @@ namespace QuickLook
                 else
                     ViewWindowManager.GetInstance().RunAndClosePreview();
             };
+
+            buttonWindowStatus.MouseLeftButtonUp += (sender, e) =>
+                WindowState = WindowState == WindowState.Maximized ? WindowState.Normal : WindowState.Maximized;
+
+            buttonShare.MouseLeftButtonUp +=
+                (sender, e) => RunWith("rundll32.exe", $"shell32.dll,OpenAs_RunDLL {Path}");
         }
 
         public bool Pinned
@@ -88,23 +94,42 @@ namespace QuickLook
             }
         }
 
-        public string PreviewPath { get; private set; }
+        public string Path { get; private set; }
         public IViewer Plugin { get; private set; }
 
         public ContextObject ContextObject { get; private set; }
 
         public event PropertyChangedEventHandler PropertyChanged;
 
-        internal void Run()
+        internal void RunWith(string with, string arg)
         {
-            if (string.IsNullOrEmpty(PreviewPath))
+            if (string.IsNullOrEmpty(Path))
                 return;
 
             try
             {
-                Process.Start(new ProcessStartInfo(PreviewPath)
+                Process.Start(new ProcessStartInfo(with)
                 {
-                    WorkingDirectory = Path.GetDirectoryName(PreviewPath)
+                    Arguments = arg,
+                    WorkingDirectory = System.IO.Path.GetDirectoryName(Path)
+                });
+            }
+            catch (Exception e)
+            {
+                Debug.WriteLine(e.Message);
+            }
+        }
+
+        internal void Run()
+        {
+            if (string.IsNullOrEmpty(Path))
+                return;
+
+            try
+            {
+                Process.Start(new ProcessStartInfo(Path)
+                {
+                    WorkingDirectory = System.IO.Path.GetDirectoryName(Path)
                 });
             }
             catch (Exception e)
@@ -177,7 +202,7 @@ namespace QuickLook
 
         internal void BeginShow(IViewer matchedPlugin, string path, Action<ExceptionDispatchInfo> exceptionHandler)
         {
-            PreviewPath = path;
+            Path = path;
             Plugin = matchedPlugin;
 
             ContextObject.ViewerWindow = this;
@@ -221,12 +246,12 @@ namespace QuickLook
 
         private void SetOpenWithButtonAndPath()
         {
-            var isExe = FileHelper.GetAssocApplication(PreviewPath, out string appFriendlyName);
+            var isExe = FileHelper.GetAssocApplication(Path, out string appFriendlyName);
 
             buttonOpenWith.Content = isExe == null
-                ? Directory.Exists(PreviewPath)
-                    ? string.Format(TranslationHelper.GetString("MW_BrowseFolder"), Path.GetFileName(PreviewPath))
-                    : string.Format(TranslationHelper.GetString("MW_Open"), Path.GetFileName(PreviewPath))
+                ? Directory.Exists(Path)
+                    ? string.Format(TranslationHelper.GetString("MW_BrowseFolder"), System.IO.Path.GetFileName(Path))
+                    : string.Format(TranslationHelper.GetString("MW_Open"), System.IO.Path.GetFileName(Path))
                 : isExe == true
                     ? string.Format(TranslationHelper.GetString("MW_Run"), appFriendlyName)
                     : string.Format(TranslationHelper.GetString("MW_OpenWith"), appFriendlyName);
diff --git a/QuickLook/Properties/Settings.Designer.cs b/QuickLook/Properties/Settings.Designer.cs
index d19554c..c1a6ae1 100644
--- a/QuickLook/Properties/Settings.Designer.cs
+++ b/QuickLook/Properties/Settings.Designer.cs
@@ -22,5 +22,29 @@ namespace QuickLook.Properties {
                 return defaultInstance;
             }
         }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("True")]
+        public bool Upgraded {
+            get {
+                return ((bool)(this["Upgraded"]));
+            }
+            set {
+                this["Upgraded"] = value;
+            }
+        }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("2017-01-01")]
+        public global::System.DateTime LastUpdate {
+            get {
+                return ((global::System.DateTime)(this["LastUpdate"]));
+            }
+            set {
+                this["LastUpdate"] = value;
+            }
+        }
     }
 }
diff --git a/QuickLook/Properties/Settings.settings b/QuickLook/Properties/Settings.settings
index c14891b..02b1ff1 100644
--- a/QuickLook/Properties/Settings.settings
+++ b/QuickLook/Properties/Settings.settings
@@ -1,8 +1,12 @@
 <?xml version='1.0' encoding='utf-8'?>
-
-<SettingsFile xmlns="uri:settings" CurrentProfile="(Default)">
-  <Profiles>
-    <Profile Name="(Default)" />
-  </Profiles>
-  <Settings />
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)" GeneratedClassNamespace="QuickLook.Properties" GeneratedClassName="Settings">
+  <Profiles />
+  <Settings>
+    <Setting Name="Upgraded" Type="System.Boolean" Scope="User">
+      <Value Profile="(Default)">True</Value>
+    </Setting>
+    <Setting Name="LastUpdate" Type="System.DateTime" Scope="User">
+      <Value Profile="(Default)">2017-01-01</Value>
+    </Setting>
+  </Settings>
 </SettingsFile>
\ No newline at end of file
diff --git a/QuickLook/QuickLook.csproj b/QuickLook/QuickLook.csproj
index 9d3542a..ee62fbf 100644
--- a/QuickLook/QuickLook.csproj
+++ b/QuickLook/QuickLook.csproj
@@ -107,7 +107,7 @@
       <Link>Properties\GitVersion.cs</Link>
     </Compile>
     <Compile Include="Converters\BooleanToResizeModeConverter.cs" />
-    <Compile Include="Converters\BooleanTrueToVisibilityCollapsedConverter.cs" />
+    <Compile Include="Converters\BooleanToVisibilityConverter.cs" />
     <Compile Include="Converters\BooleanToResizeBorderThicknessConverter.cs" />
     <Compile Include="FocusMonitor.cs" />
     <Compile Include="Helpers\AutoStartupHelper.cs" />
diff --git a/QuickLook/Translations.config b/QuickLook/Translations.config
index f8f5dd2..b7e11c1 100644
--- a/QuickLook/Translations.config
+++ b/QuickLook/Translations.config
@@ -14,7 +14,7 @@
     <Icon_CheckUpdate>Check for &amp;Updates...</Icon_CheckUpdate>
     <Icon_Quit>&amp;Quit</Icon_Quit>
     <Update_NoUpdate>You are now on the latest version.</Update_NoUpdate>
-    <Update_Found>New version {0} is released. Click here to open the download page.</Update_Found>
+    <Update_Found>QuickLook {0} is released. Click here to open the download page.</Update_Found>
     <Update_Error>Error occured when checking for updates: {0}</Update_Error>
     <InfoPanel_LastModified>Last modified at {0}</InfoPanel_LastModified>
     <InfoPanel_DriveSize>Capacity {0}, {1} available</InfoPanel_DriveSize>
@@ -35,7 +35,7 @@
     <Icon_CheckUpdate>检查更新... (&amp;U)</Icon_CheckUpdate>
     <Icon_Quit>退出 (&amp;Q)</Icon_Quit>
     <Update_NoUpdate>您已使用了最新版本。</Update_NoUpdate>
-    <Update_Found>发现新版本 {0}。点击这里打开下载页面。</Update_Found>
+    <Update_Found>QuickLook {0} 已发布。点击这里打开下载页面。</Update_Found>
     <Update_Error>检查更新时发生错误：{0}</Update_Error>
     <InfoPanel_LastModified>最后修改于 {0}</InfoPanel_LastModified>
     <InfoPanel_DriveSize>总容量 {0}，可用 {1}</InfoPanel_DriveSize>