diff --git a/WechatMediaRenamer.sln b/WechatMediaRenamer.sln
new file mode 100644
index 0000000..36d7aaf
--- /dev/null
+++ b/WechatMediaRenamer.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Blend for Visual Studio Version 16
+VisualStudioVersion = 16.0.30717.126
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WechatMediaRenamer", "WechatMediaRenamer\WechatMediaRenamer.csproj", "{4CDBBF26-46DA-4A3C-B5A8-F4E895463F99}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{4CDBBF26-46DA-4A3C-B5A8-F4E895463F99}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4CDBBF26-46DA-4A3C-B5A8-F4E895463F99}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4CDBBF26-46DA-4A3C-B5A8-F4E895463F99}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4CDBBF26-46DA-4A3C-B5A8-F4E895463F99}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {D30908F1-B7E2-40A3-B59A-D8ADD122DBA9}
+	EndGlobalSection
+EndGlobal
diff --git a/WechatMediaRenamer/App.config b/WechatMediaRenamer/App.config
new file mode 100644
index 0000000..56efbc7
--- /dev/null
+++ b/WechatMediaRenamer/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git a/WechatMediaRenamer/App.xaml b/WechatMediaRenamer/App.xaml
new file mode 100644
index 0000000..a237902
--- /dev/null
+++ b/WechatMediaRenamer/App.xaml
@@ -0,0 +1,9 @@
+<Application x:Class="WechatMediaRenamer.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:WechatMediaRenamer"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
diff --git a/WechatMediaRenamer/App.xaml.cs b/WechatMediaRenamer/App.xaml.cs
new file mode 100644
index 0000000..8551e37
--- /dev/null
+++ b/WechatMediaRenamer/App.xaml.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Data;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace WechatMediaRenamer
+{
+    /// <summary>
+    /// App.xaml 的交互逻辑
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+}
diff --git a/WechatMediaRenamer/MainWindow.xaml b/WechatMediaRenamer/MainWindow.xaml
new file mode 100644
index 0000000..e1ac3e3
--- /dev/null
+++ b/WechatMediaRenamer/MainWindow.xaml
@@ -0,0 +1,22 @@
+<Window x:Class="WechatMediaRenamer.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WechatMediaRenamer"
+        mc:Ignorable="d"
+        Topmost="True"
+        Title="微信图重命名神器" Height="150" Width="300" Icon="binoculars.png">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="34" />
+            <RowDefinition />
+        </Grid.RowDefinitions>
+        <Button Grid.Row="0" Content="Close" HorizontalAlignment="Stretch"
+                Margin="5" VerticalAlignment="Stretch" Click="Button_Click"/>
+        <Label Grid.Row="1" Content="Drop Here" HorizontalAlignment="Stretch" HorizontalContentAlignment="Center" 
+               VerticalAlignment="Stretch" VerticalContentAlignment="Center" Margin="5" BorderBrush="#FF3E3535"
+               BorderThickness="1" Drop="Ellipse_Drop" AllowDrop="True"/>
+    </Grid>
+
+</Window>
diff --git a/WechatMediaRenamer/MainWindow.xaml.cs b/WechatMediaRenamer/MainWindow.xaml.cs
new file mode 100644
index 0000000..5531a4e
--- /dev/null
+++ b/WechatMediaRenamer/MainWindow.xaml.cs
@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.IO;
+using System.Text.RegularExpressions;
+
+namespace WechatMediaRenamer
+{
+    /// <summary>
+    /// MainWindow.xaml 的交互逻辑
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+
+        private static readonly DateTime epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+        private static readonly TimeSpan chinaTimeSpan = new TimeSpan(8, 0, 0);
+        private static readonly TimeZoneInfo chinaTime = TimeZoneInfo.CreateCustomTimeZone("CST", chinaTimeSpan, "China Standard SR Time", "SR Time");
+
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+
+        private void Button_Click(object sender, RoutedEventArgs e)
+        {
+            Environment.Exit(0);
+        }
+
+        private void Ellipse_Drop(object sender, DragEventArgs e)
+        {
+            if (e.Data.GetDataPresent(DataFormats.FileDrop))
+            {
+                string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
+                RenameFiles(files);
+            }
+        }
+
+        private void RenameFiles(string[] files)
+        {
+            MediaFileRenamer mediaFileRenamer;
+            StringBuilder sb = new StringBuilder();
+            foreach (var filePath in files)
+            {
+                mediaFileRenamer = MediaFileRenamer.FromFilePath(filePath);
+                string renameMessage = mediaFileRenamer.Rename();
+                if (renameMessage.Length > 0)
+                {
+                    sb.AppendLine(renameMessage);
+                }
+            }
+            if (sb.Length > 0)
+            {
+                MessageBox.Show(sb.ToString());
+            }
+        }
+    }
+}
diff --git a/WechatMediaRenamer/MediaFileRenamer.cs b/WechatMediaRenamer/MediaFileRenamer.cs
new file mode 100644
index 0000000..e1b4faa
--- /dev/null
+++ b/WechatMediaRenamer/MediaFileRenamer.cs
@@ -0,0 +1,89 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.IO;
+using System.Text.RegularExpressions;
+
+namespace WechatMediaRenamer
+{
+    class MediaFileRenamer
+    {
+        public string FullFilePath { get; }
+        public string FullDirectoryPath { get; }
+        public string FileNameWithoutExtension { get; }
+        public string Extension { get; }
+
+        private static readonly DateTime epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+        private static readonly TimeSpan chinaTimeSpan = new TimeSpan(8, 0, 0);
+        private static readonly TimeZoneInfo chinaTime = TimeZoneInfo.CreateCustomTimeZone("CST", chinaTimeSpan, "China Standard SR Time", "SR Time");
+
+        public static MediaFileRenamer FromFilePath(string filePath)
+        {
+            return new MediaFileRenamer(filePath);
+        }
+
+        public MediaFileRenamer(string filePath)
+        {
+            this.FullFilePath = filePath;
+            this.FullDirectoryPath = Path.GetDirectoryName(filePath);
+            this.FileNameWithoutExtension = Path.GetFileNameWithoutExtension(filePath);
+            this.Extension = Path.GetExtension(filePath);
+        }
+
+        public string Rename()
+        {
+            string epochTime = GetDatePart(this.FileNameWithoutExtension);
+            if (epochTime.Equals(String.Empty) || epochTime.Length != 13)
+            {
+                return String.Format("无法识别文件 '{0}'中的Epoch时间！", this.FullFilePath);
+            }
+            string destPath = Path.Combine(this.FullDirectoryPath, ComposeNameFromEpochTime(epochTime));
+            if (File.Exists(destPath))
+            {
+                return String.Format("'{0}' 无法被重命名为 '{1}'，因为目标已存在！", this.FullFilePath, destPath);
+            }
+            File.Move(this.FullFilePath, destPath);
+            return String.Empty;
+        }
+
+        private string GetDatePart(string fileNameWithoutExtention)
+        {
+            string datePattern = @"[^\d]*(\d+)";
+            Match m = Regex.Match(fileNameWithoutExtention, datePattern, RegexOptions.IgnoreCase);
+            if (m.Success && m.Groups.Count > 1)
+                return m.Groups[1].Value;
+            return String.Empty;
+        }
+
+        private string GetFileNameTemplateByExtention(string extName)
+        {
+            switch (extName.ToLower())
+            {
+                case ".mp4":
+                    return "VID_{0}{1}";
+                case ".jpg":
+                case ".jpeg":
+                case ".png":
+                case ".gif":
+                    return "IMG_{0}{1}";
+                default:
+                    return "{0}{1}";
+            }
+        }
+
+        private string ComposeNameFromEpochTime(string epochTime)
+        {
+            string dateTimePart = String.Format("{0:yyyyMMdd_HHmmss}", GetDateTimeInChinaFromEpochTime(epochTime));
+            string fileNameTemplate = GetFileNameTemplateByExtention(this.Extension);
+            return String.Format(fileNameTemplate, dateTimePart, this.Extension);
+        }
+
+        private DateTime GetDateTimeInChinaFromEpochTime(string epochTime)
+        {
+            DateTime utcDateTime = epoch.AddMilliseconds(long.Parse(epochTime));
+            return TimeZoneInfo.ConvertTimeFromUtc(utcDateTime, chinaTime);
+        }
+    }
+}
diff --git a/WechatMediaRenamer/Properties/AssemblyInfo.cs b/WechatMediaRenamer/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..d6be4f9
--- /dev/null
+++ b/WechatMediaRenamer/Properties/AssemblyInfo.cs
@@ -0,0 +1,55 @@
+using System.Reflection;
+using System.Resources;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Windows;
+
+// 有关程序集的一般信息由以下
+// 控制。更改这些特性值可修改
+// 与程序集关联的信息。
+[assembly: AssemblyTitle("WpfApp1")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("WpfApp1")]
+[assembly: AssemblyCopyright("Copyright ©  2020")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// 将 ComVisible 设置为 false 会使此程序集中的类型
+//对 COM 组件不可见。如果需要从 COM 访问此程序集中的类型
+//请将此类型的 ComVisible 特性设置为 true。
+[assembly: ComVisible(false)]
+
+//若要开始生成可本地化的应用程序，请设置
+//.csproj 文件中的 <UICulture>CultureYouAreCodingWith</UICulture>
+//例如，如果您在源文件中使用的是美国英语，
+//使用的是美国英语，请将 <UICulture> 设置为 en-US。  然后取消
+//对以下 NeutralResourceLanguage 特性的注释。  更新
+//以下行中的“en-US”以匹配项目文件中的 UICulture 设置。
+
+//[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
+
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //主题特定资源词典所处位置
+                                     //(未在页面中找到资源时使用，
+                                     //或应用程序资源字典中找到时使用)
+    ResourceDictionaryLocation.SourceAssembly //常规资源词典所处位置
+                                              //(未在页面中找到资源时使用，
+                                              //、应用程序或任何主题专用资源字典中找到时使用)
+)]
+
+
+// 程序集的版本信息由下列四个值组成: 
+//
+//      主版本
+//      次版本
+//      生成号
+//      修订号
+//
+//可以指定所有这些值，也可以使用“生成号”和“修订号”的默认值
+//通过使用 "*"，如下所示:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/WechatMediaRenamer/Properties/Resources.Designer.cs b/WechatMediaRenamer/Properties/Resources.Designer.cs
new file mode 100644
index 0000000..dff52c9
--- /dev/null
+++ b/WechatMediaRenamer/Properties/Resources.Designer.cs
@@ -0,0 +1,70 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     此代码由工具生成。
+//     运行时版本: 4.0.30319.42000
+//
+//     对此文件的更改可能导致不正确的行为，如果
+//     重新生成代码，则所做更改将丢失。
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+
+namespace WechatMediaRenamer.Properties
+{
+    /// <summary>
+    ///   强类型资源类，用于查找本地化字符串等。
+    /// </summary>
+    // 此类是由 StronglyTypedResourceBuilder
+    // 类通过类似于 ResGen 或 Visual Studio 的工具自动生成的。
+    // 若要添加或删除成员，请编辑 .ResX 文件，然后重新运行 ResGen
+    // (以 /str 作为命令选项)，或重新生成 VS 项目。
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   返回此类使用的缓存 ResourceManager 实例。
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("WpfApp1.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   重写当前线程的 CurrentUICulture 属性，对
+        ///   使用此强类型资源类的所有资源查找执行重写。
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get
+            {
+                return resourceCulture;
+            }
+            set
+            {
+                resourceCulture = value;
+            }
+        }
+    }
+}
diff --git a/WechatMediaRenamer/Properties/Resources.resx b/WechatMediaRenamer/Properties/Resources.resx
new file mode 100644
index 0000000..af7dbeb
--- /dev/null
+++ b/WechatMediaRenamer/Properties/Resources.resx
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
\ No newline at end of file
diff --git a/WechatMediaRenamer/Properties/Settings.Designer.cs b/WechatMediaRenamer/Properties/Settings.Designer.cs
new file mode 100644
index 0000000..082fc95
--- /dev/null
+++ b/WechatMediaRenamer/Properties/Settings.Designer.cs
@@ -0,0 +1,29 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+
+namespace WechatMediaRenamer.Properties
+{
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}
diff --git a/WechatMediaRenamer/Properties/Settings.settings b/WechatMediaRenamer/Properties/Settings.settings
new file mode 100644
index 0000000..033d7a5
--- /dev/null
+++ b/WechatMediaRenamer/Properties/Settings.settings
@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="uri:settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>
\ No newline at end of file
diff --git a/WechatMediaRenamer/WechatMediaRenamer.csproj b/WechatMediaRenamer/WechatMediaRenamer.csproj
new file mode 100644
index 0000000..34bd56a
--- /dev/null
+++ b/WechatMediaRenamer/WechatMediaRenamer.csproj
@@ -0,0 +1,108 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{4CDBBF26-46DA-4A3C-B5A8-F4E895463F99}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>WpfApp1</RootNamespace>
+    <AssemblyName>WpfApp1</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <WarningLevel>4</WarningLevel>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>0</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup>
+    <ApplicationIcon>hnet.com-image.ico</ApplicationIcon>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xaml">
+      <RequiredTargetFramework>4.0</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="WindowsBase" />
+    <Reference Include="PresentationCore" />
+    <Reference Include="PresentationFramework" />
+  </ItemGroup>
+  <ItemGroup>
+    <ApplicationDefinition Include="App.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </ApplicationDefinition>
+    <Page Include="MainWindow.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+    <Compile Include="App.xaml.cs">
+      <DependentUpon>App.xaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="MediaFileRenamer.cs" />
+    <Compile Include="MainWindow.xaml.cs">
+      <DependentUpon>MainWindow.xaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Properties\AssemblyInfo.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DesignTime>True</DesignTime>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <Resource Include="hnet.com-image.ico" />
+  </ItemGroup>
+  <ItemGroup>
+    <Resource Include="binoculars.png" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file
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