diff --git a/CefSharp.MinimalExample.Wpf/App.xaml.cs b/CefSharp.MinimalExample.Wpf/App.xaml.cs
index 1668715..a516982 100644
--- a/CefSharp.MinimalExample.Wpf/App.xaml.cs
+++ b/CefSharp.MinimalExample.Wpf/App.xaml.cs
@@ -40,5 +40,17 @@ namespace CefSharp.MinimalExample.Wpf
                 Cef.Initialize(settings, performDependencyCheck: true, browserProcessHandler: null);
             }
         }
+
+        public static void RunUIThread(Action action)
+        {
+            if (Current.CheckAccess())
+            {
+                action?.Invoke();
+            }
+            else
+            {
+                Current.Dispatcher.BeginInvoke(action);
+            }
+        }
     }
 }
diff --git a/CefSharp.MinimalExample.Wpf/CefSharp.MinimalExample.Wpf.csproj b/CefSharp.MinimalExample.Wpf/CefSharp.MinimalExample.Wpf.csproj
index e389f60..c5fa7e3 100644
--- a/CefSharp.MinimalExample.Wpf/CefSharp.MinimalExample.Wpf.csproj
+++ b/CefSharp.MinimalExample.Wpf/CefSharp.MinimalExample.Wpf.csproj
@@ -103,12 +103,17 @@
       <HintPath>..\packages\CefSharp.Wpf.107.1.120\lib\net452\CefSharp.Wpf.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="log4net, Version=2.0.15.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
+      <HintPath>..\packages\log4net.2.0.15\lib\net45\log4net.dll</HintPath>
+    </Reference>
     <Reference Include="Microsoft.Xaml.Behaviors, Version=1.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>..\packages\Microsoft.Xaml.Behaviors.Wpf.1.1.19\lib\net45\Microsoft.Xaml.Behaviors.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Configuration" />
     <Reference Include="System.Core" />
+    <Reference Include="System.Web" />
     <Reference Include="System.Xaml">
       <RequiredTargetFramework>4.0</RequiredTargetFramework>
     </Reference>
diff --git a/CefSharp.MinimalExample.Wpf/MainWindow.xaml b/CefSharp.MinimalExample.Wpf/MainWindow.xaml
index e0d7b2c..cc63a66 100644
--- a/CefSharp.MinimalExample.Wpf/MainWindow.xaml
+++ b/CefSharp.MinimalExample.Wpf/MainWindow.xaml
@@ -1,13 +1,13 @@
 <Window x:Class="CefSharp.MinimalExample.Wpf.MainWindow"
-        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        xmlns:wpf="clr-namespace:CefSharp.Wpf;assembly=CefSharp.Wpf"
-        xmlns:cef="clr-namespace:CefSharp;assembly=CefSharp.Core"
-        xmlns:behaviours="clr-namespace:CefSharp.MinimalExample.Wpf.Behaviours"
-        xmlns:behaviors="http://schemas.microsoft.com/xaml/behaviors"
-        Title="{Binding Path=Title, ElementName=Browser, Converter={StaticResource TitleConverter}}"
-        FocusManager.FocusedElement="{Binding ElementName=Browser}"
-        WindowState="Maximized">
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:wpf="clr-namespace:CefSharp.Wpf;assembly=CefSharp.Wpf"
+    xmlns:cef="clr-namespace:CefSharp;assembly=CefSharp.Core"
+    xmlns:behaviours="clr-namespace:CefSharp.MinimalExample.Wpf.Behaviours"
+    xmlns:behaviors="http://schemas.microsoft.com/xaml/behaviors"
+    Title="{Binding Path=Title, ElementName=Browser, Converter={StaticResource TitleConverter}}"
+    FocusManager.FocusedElement="{Binding ElementName=Browser}"
+    WindowState="Maximized">
     <Grid>
         <Grid.RowDefinitions>
             <RowDefinition Height="Auto" />
@@ -23,6 +23,10 @@
                     <Setter Property="Margin" Value="2,5" />
                 </Style>
             </Grid.Resources>
+            <Grid.RowDefinitions>
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="Auto"/>
+            </Grid.RowDefinitions>
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="Auto" />
                 <ColumnDefinition Width="Auto" />
@@ -30,32 +34,52 @@
                 <ColumnDefinition Width="Auto" />
                 <ColumnDefinition Width="Auto" />
             </Grid.ColumnDefinitions>
-            <Button Content="Back" Command="{Binding WebBrowser.BackCommand, ElementName=Browser}" Width="50"/>
-            <Button Content="Forward" Command="{Binding WebBrowser.ForwardCommand, ElementName=Browser}" Grid.Column="1" Width="60"/>
-            <TextBox x:Name="txtBoxAddress" Text="{Binding Address, ElementName=Browser, FallbackValue=www.google.com}" Grid.Column="2" FontSize="12" BorderBrush="Gray" BorderThickness="1">
+            <Button Content="Back" Command="{Binding WebBrowser.BackCommand, ElementName=Browser}" Width="50" />
+            <Button Content="Forward" Command="{Binding WebBrowser.ForwardCommand, ElementName=Browser}" Grid.Row="0" Grid.Column="1" Width="60" />
+            <TextBox x:Name="txtBoxAddress" Text="{Binding Address, ElementName=Browser, FallbackValue=www.google.com}" Grid.Row="0" Grid.Column="2" FontSize="12"
+                BorderBrush="Gray" BorderThickness="1">
                 <behaviors:Interaction.Behaviors>
                     <behaviours:TextBoxBindingUpdateOnEnterBehaviour />
                 </behaviors:Interaction.Behaviors>
             </TextBox>
-            <Button Content="Print..." Command="{Binding WebBrowser.PrintCommand, ElementName=Browser}" Grid.Column="3" Width="50" />
-            <Button Content="View source" Command="{Binding WebBrowser.ViewSourceCommand, ElementName=Browser}" Grid.Column="4" Width="75" />
+            <Button Content="Print..." Command="{Binding WebBrowser.PrintCommand, ElementName=Browser}" Grid.Row="0" Grid.Column="3" Width="50" />
+            <Button Content="View source" Command="{Binding WebBrowser.ViewSourceCommand, ElementName=Browser}" Grid.Row="0" Grid.Column="4" Width="75" />
+            <Grid Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="4">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="*"/>
+                    <ColumnDefinition Width="*"/>
+                    <ColumnDefinition Width="*"/>
+                    <ColumnDefinition Width="Auto"/>
+                    <ColumnDefinition Width="Auto"/>
+                    <ColumnDefinition Width="Auto"/>
+                    <ColumnDefinition Width="*"/>
+                </Grid.ColumnDefinitions>
+                <TextBox  x:Name="JsTb" Grid.Column="0" VerticalContentAlignment="Center"/>
+                <TextBox  x:Name="JsArgs1Tb" Grid.Column="1" VerticalContentAlignment="Center"/>
+                <TextBox  x:Name="JsArgs2Tb" Grid.Column="2" VerticalContentAlignment="Center"/>
+                <CheckBox Grid.Column="3" x:Name="HasArgsCb" Width="80" VerticalAlignment="Center" HorizontalAlignment="Center" Content="HasArgs"/>
+                <CheckBox Grid.Column="4" x:Name="HasValueCb" Width="80" VerticalAlignment="Center" HorizontalAlignment="Center" Content="HasValue"/>
+                <Button Grid.Column="5" Content="ExcJs" Click="JsBtn_OnClick" x:Name="JsBtn"/>
+                <TextBlock Grid.Column="6" x:Name="JsResultTb" VerticalAlignment="Center"/>
+            </Grid>
         </Grid>
         <Border Grid.Row="1" BorderBrush="Gray" BorderThickness="0,1">
             <wpf:ChromiumWebBrowser x:Name="Browser"
-                                    Address="https://www.google.com">
+                Address="https://www.google.com">
                 <behaviors:Interaction.Behaviors>
-                    <behaviours:HoverLinkBehaviour x:Name="HoverLinkBehaviour"/>
+                    <behaviours:HoverLinkBehaviour x:Name="HoverLinkBehaviour" />
                 </behaviors:Interaction.Behaviors>
             </wpf:ChromiumWebBrowser>
         </Border>
-        <ProgressBar IsIndeterminate="{Binding IsLoading, ElementName=Browser}"
-                     HorizontalAlignment="Stretch"
-                     VerticalAlignment="Top"
-                     Width="Auto"
-                     Grid.Row="1"
-                     Height="2"
-                     Visibility="{Binding IsLoading, ElementName=Browser, Converter={StaticResource BooleanToVisibilityConverter}}"
-                     BorderThickness="0" />
+        <ProgressBar
+            IsIndeterminate="{Binding IsLoading, ElementName=Browser}"
+            HorizontalAlignment="Stretch"
+            VerticalAlignment="Top"
+            Width="Auto"
+            Grid.Row="1"
+            Height="2"
+            Visibility="{Binding IsLoading, ElementName=Browser, Converter={StaticResource BooleanToVisibilityConverter}}"
+            BorderThickness="0" />
         <StatusBar Grid.Row="2" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch">
             <StatusBar.ItemsPanel>
                 <ItemsPanelTemplate>
@@ -74,9 +98,12 @@
             <Separator Grid.Column="1" />
             <StatusBarItem Grid.Column="2">
                 <TextBlock HorizontalAlignment="Right" TextAlignment="Right" Grid.Column="3" VerticalAlignment="Center">
-                Chromium: <Run Text="{Binding Source={x:Static cef:Cef.ChromiumVersion}, Mode=OneTime}" />, CEF: <Run Text="{Binding Source={x:Static cef:Cef.CefVersion}, Mode=OneTime}" />, CefSharp: <Run Text="{Binding Source={x:Static cef:Cef.CefSharpVersion}, Mode=OneTime}"/>, Environment: <Run Text="{Binding Converter={StaticResource EnvironmentConverter}, Mode=OneTime}"/>
+                    Chromium: <Run Text="{Binding Source={x:Static cef:Cef.ChromiumVersion}, Mode=OneTime}" />, CEF:
+                    <Run Text="{Binding Source={x:Static cef:Cef.CefVersion}, Mode=OneTime}" />, CefSharp:
+                    <Run Text="{Binding Source={x:Static cef:Cef.CefSharpVersion}, Mode=OneTime}" />, Environment:
+                    <Run Text="{Binding Converter={StaticResource EnvironmentConverter}, Mode=OneTime}" />
                 </TextBlock>
             </StatusBarItem>
         </StatusBar>
     </Grid>
-</Window>
+</Window>
\ No newline at end of file
diff --git a/CefSharp.MinimalExample.Wpf/MainWindow.xaml.cs b/CefSharp.MinimalExample.Wpf/MainWindow.xaml.cs
index bc19c9c..7310db4 100644
--- a/CefSharp.MinimalExample.Wpf/MainWindow.xaml.cs
+++ b/CefSharp.MinimalExample.Wpf/MainWindow.xaml.cs
@@ -7,6 +7,63 @@ namespace CefSharp.MinimalExample.Wpf
         public MainWindow()
         {
             InitializeComponent();
+            Browser.FrameLoadStart += BrowserOnFrameLoadStart;
+            Browser.FrameLoadEnd += BrowserOnFrameLoadEnd;
+        }
+
+        private void BrowserOnFrameLoadEnd(object sender, FrameLoadEndEventArgs e)
+        {
+        }
+
+        private void BrowserOnFrameLoadStart(object sender, FrameLoadStartEventArgs e)
+        {
+        }
+
+        private void JsBtn_OnClick(object sender, RoutedEventArgs e)
+        {
+            object[] args = new object[2];
+            args[0] = JsArgs1Tb.Text;
+            args[1] = JsArgs2Tb.Text;
+            if (HasValueCb.IsChecked ?? false)
+            {
+                ExecuteJs(JsTb.Text, (HasArgsCb.IsChecked ?? false) ? args : null);
+            }
+            else
+            {
+                ExecuteJsNoValue(JsTb.Text, (HasArgsCb.IsChecked ?? false) ? args : null);
+            }
+        }
+
+        private void ExecuteJsNoValue(string js, object[] args = null)
+        {
+            if (!string.IsNullOrEmpty(js))
+            {
+                js = args == null ? js : WebBrowserExtensions.GetScriptForJavascriptMethodWithArgs(js, args);
+                Browser.ExecuteScriptAsync(js);
+            }
+            else
+            {
+                JsResultTb.Text = "js is empty!";
+            }
+        }
+
+        private void ExecuteJs(string js, object[] args = null)
+        {
+            if (!string.IsNullOrEmpty(js))
+            {
+                js = args == null ? js : WebBrowserExtensions.GetScriptForJavascriptMethodWithArgs(js, args);
+                Browser.EvaluateScriptAsync(js).ContinueWith(o =>
+                {
+                    App.RunUIThread(() =>
+                    {
+                        JsResultTb.Text = (o?.Result?.Success ?? false) ? o?.Result?.Result?.ToString() : o?.Result?.Message;
+                    });
+                });
+            }
+            else
+            {
+                JsResultTb.Text = "js is empty!";
+            }
         }
     }
 }
diff --git a/CefSharp.MinimalExample.Wpf/packages.config b/CefSharp.MinimalExample.Wpf/packages.config
index 26dde4e..8563492 100644
--- a/CefSharp.MinimalExample.Wpf/packages.config
+++ b/CefSharp.MinimalExample.Wpf/packages.config
@@ -5,4 +5,5 @@
   <package id="CefSharp.Common" version="107.1.120" targetFramework="net452" />
   <package id="CefSharp.Wpf" version="107.1.120" targetFramework="net452" />
   <package id="Microsoft.Xaml.Behaviors.Wpf" version="1.1.19" targetFramework="net452" />
+  <package id="log4net" version="2.0.15" targetFramework="net452" />
 </packages>
\ No newline at end of file