diff --git a/FlexConfirmMail.csproj b/FlexConfirmMail.csproj
index db2243c..6461e61 100644
--- a/FlexConfirmMail.csproj
+++ b/FlexConfirmMail.csproj
@@ -1,278 +1,278 @@
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-      Set to "false" for VSTO.
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-      In C#, this specifies the namespace given to new files. In VB, all objects are
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-    <!--
-      OfficeApplication
-        Add-in host application
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-    This section defines properties that are set when the "Debug" configuration is selected.
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-    DebugSymbols
-      If "true", create symbols (.pdb). If "false", do not create symbols.
-    DefineConstants
-      Constants defined for the preprocessor.
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-      If "true", starting the debugger will attach both managed and unmanaged debuggers.
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-      If "true", create symbols (.pdb). If "false", do not create symbols.
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-      Constants defined for the preprocessor.
-    EnableUnmanagedDebugging
-      If "true", starting the debugger will attach both managed and unmanaged debuggers.
-    Optimize
-      If "true", optimize the build output. If "false", do not optimize.
-    OutputPath
-      Output path of project relative to the project file.
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-      Warning level for the compiler.
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+    This section defines project-level properties.
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+    AssemblyName
+      Name of the output assembly.
+    Configuration
+      Specifies a default value for debug.
+    OutputType
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+    Platform
+      Specifies what CPU the output of this project can run on.
+    NoStandardLibraries
+      Set to "false" for VSTO.
+    RootNamespace
+      In C#, this specifies the namespace given to new files. In VB, all objects are
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+  <PropertyGroup>
+    <ProjectTypeGuids>{BAA0C2D2-18E2-41B9-852F-F413020CAA33};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
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+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
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+      OfficeApplication
+        Add-in host application
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+    <OfficeApplication>Outlook</OfficeApplication>
+  </PropertyGroup>
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+    This section defines properties that are set when the "Debug" configuration is selected.
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+    DebugSymbols
+      If "true", create symbols (.pdb). If "false", do not create symbols.
+    DefineConstants
+      Constants defined for the preprocessor.
+    EnableUnmanagedDebugging
+      If "true", starting the debugger will attach both managed and unmanaged debuggers.
+    Optimize
+      If "true", optimize the build output. If "false", do not optimize.
+    OutputPath
+      Output path of project relative to the project file.
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+      Warning level for the compiler.
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+    DebugSymbols
+      If "true", create symbols (.pdb). If "false", do not create symbols.
+    DefineConstants
+      Constants defined for the preprocessor.
+    EnableUnmanagedDebugging
+      If "true", starting the debugger will attach both managed and unmanaged debuggers.
+    Optimize
+      If "true", optimize the build output. If "false", do not optimize.
+    OutputPath
+      Output path of project relative to the project file.
+    WarningLevel
+      Warning level for the compiler.
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+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
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+    <EnableUnmanagedDebugging>false</EnableUnmanagedDebugging>
+    <DefineConstants>$(DefineConstants);TRACE</DefineConstants>
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+  <!--
+    This section specifies references for the project.
+  -->
+  <ItemGroup>
+    <Reference Include="Accessibility" />
+    <Reference Include="PresentationCore" />
+    <Reference Include="PresentationFramework" />
+    <Reference Include="System" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xaml" />
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
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+    <Reference Include="Microsoft.Office.Interop.Outlook, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c">
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+    This section defines the user source files that are part of the project.
+     
+    A "Compile" element specifies a source file to compile.
+    An "EmbeddedResource" element specifies an .resx file for embedded resources.
+    A "None" element specifies a file that is not to be passed to the compiler (for instance, 
+    a text file or XML file).
+    The "AppDesigner" element specifies the directory where the application properties files
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+  <ItemGroup>
+    <Compile Include="Dialog\ConfigDialog.xaml.cs">
+      <DependentUpon>ConfigDialog.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Dialog\Helper.cs" />
+    <Compile Include="Config\Config.cs" />
+    <Compile Include="Config\File.cs" />
+    <Compile Include="Config\Loader.cs" />
+    <Compile Include="Config\Registry.cs" />
+    <Compile Include="Config\Const.cs" />
+    <Compile Include="Config\StandardPath.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs">
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+    <Compile Include="Dialog\MainDialog.xaml.cs">
+      <DependentUpon>MainDialog.xaml</DependentUpon>
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+    <Compile Include="Dialog\CountDialog.xaml.cs">
+      <DependentUpon>CountDialog.xaml</DependentUpon>
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+    <Compile Include="Logger.cs" />
+    <Compile Include="Ribbon.cs" />
+    <EmbeddedResource Include="Properties\Resources.zh.resx" />
+    <EmbeddedResource Include="Properties\Resources.en.resx" />
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+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
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+  <!-- Include the build rules for a C# project. -->
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- Include additional build rules for an Office application add-in. -->
+  <Import Project="$(VSToolsPath)\OfficeTools\Microsoft.VisualStudio.Tools.Office.targets" Condition="'$(VSToolsPath)' != ''" />
+  <!-- This section defines VSTO properties that describe the host-changeable project properties. -->
+  <ProjectExtensions>
+    <VisualStudio>
+      <FlavorProperties GUID="{BAA0C2D2-18E2-41B9-852F-F413020CAA33}">
+        <ProjectProperties HostName="Outlook" HostPackage="{29A7B9D7-A7F1-4328-8EF0-6B2D1A56B2C1}" OfficeVersion="15.0" VstxVersion="4.0" ApplicationType="Outlook" Language="cs" TemplatesPath="" DebugInfoExeName="#Software\Microsoft\Office\16.0\Outlook\InstallRoot\Path#outlook.exe" AddItemTemplatesGuid="{A58A78EB-1C92-4DDD-80CF-E8BD872ABFC4}" />
+        <Host Name="Outlook" GeneratedCodeNamespace="FlexConfirmMail" IconIndex="0">
+          <HostItem Name="ThisAddIn" Code="ThisAddIn.cs" CanonicalName="AddIn" CanActivate="false" IconIndex="1" Blueprint="ThisAddIn.Designer.xml" GeneratedCode="ThisAddIn.Designer.cs" />
+        </Host>
+      </FlavorProperties>
+    </VisualStudio>
+  </ProjectExtensions>
 </Project>
\ No newline at end of file
diff --git a/FlexConfirmMail.sln b/FlexConfirmMail.sln
index 5ff0d0d..25aa1e7 100644
--- a/FlexConfirmMail.sln
+++ b/FlexConfirmMail.sln
@@ -1,25 +1,25 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
-VisualStudioVersion = 16.0.31911.196
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FlexConfirmMail", "FlexConfirmMail.csproj", "{4EAA079A-248A-4A17-A99F-BECD06A01945}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{4EAA079A-248A-4A17-A99F-BECD06A01945}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{4EAA079A-248A-4A17-A99F-BECD06A01945}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{4EAA079A-248A-4A17-A99F-BECD06A01945}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{4EAA079A-248A-4A17-A99F-BECD06A01945}.Release|Any CPU.Build.0 = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {158909E9-4DD9-43FF-8C7A-6CCA442B4098}
-	EndGlobalSection
-EndGlobal
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.31911.196
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FlexConfirmMail", "FlexConfirmMail.csproj", "{4EAA079A-248A-4A17-A99F-BECD06A01945}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{4EAA079A-248A-4A17-A99F-BECD06A01945}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4EAA079A-248A-4A17-A99F-BECD06A01945}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4EAA079A-248A-4A17-A99F-BECD06A01945}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4EAA079A-248A-4A17-A99F-BECD06A01945}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {158909E9-4DD9-43FF-8C7A-6CCA442B4098}
+	EndGlobalSection
+EndGlobal