diff --git a/v2rayN/v2rayN/HttpProxyHandler/HttpWebServer.cs b/v2rayN/v2rayN/Base/HttpWebServer.cs
similarity index 98%
rename from v2rayN/v2rayN/HttpProxyHandler/HttpWebServer.cs
rename to v2rayN/v2rayN/Base/HttpWebServer.cs
index 906f26d9..152dcab9 100644
--- a/v2rayN/v2rayN/HttpProxyHandler/HttpWebServer.cs
+++ b/v2rayN/v2rayN/Base/HttpWebServer.cs
@@ -3,7 +3,7 @@ using System.Net;
 using System.Text;
 using System.Threading;
 
-namespace v2rayN.HttpProxyHandler
+namespace v2rayN.Base
 {
     public class HttpWebServer
     {
diff --git a/v2rayN/v2rayN/HttpProxyHandler/HttpWebServerB.cs b/v2rayN/v2rayN/Base/HttpWebServerB.cs
similarity index 97%
rename from v2rayN/v2rayN/HttpProxyHandler/HttpWebServerB.cs
rename to v2rayN/v2rayN/Base/HttpWebServerB.cs
index 78cbb0fc..0aef834b 100644
--- a/v2rayN/v2rayN/HttpProxyHandler/HttpWebServerB.cs
+++ b/v2rayN/v2rayN/Base/HttpWebServerB.cs
@@ -1,12 +1,10 @@
 using System;
-using System.Collections;
 using System.IO;
 using System.Net;
 using System.Net.Sockets;
-using System.Text;
 using System.Threading;
 
-namespace v2rayN.HttpProxyHandler
+namespace v2rayN.Base
 {
     public class HttpWebServerB
     {
diff --git a/v2rayN/v2rayN/Forms/ListViewFlickerFree.cs b/v2rayN/v2rayN/Base/ListViewFlickerFree.cs
similarity index 98%
rename from v2rayN/v2rayN/Forms/ListViewFlickerFree.cs
rename to v2rayN/v2rayN/Base/ListViewFlickerFree.cs
index 6b7cb451..7fc58205 100644
--- a/v2rayN/v2rayN/Forms/ListViewFlickerFree.cs
+++ b/v2rayN/v2rayN/Base/ListViewFlickerFree.cs
@@ -1,7 +1,7 @@
 using System.Drawing;
 using System.Windows.Forms;
 
-namespace v2rayN.Forms
+namespace v2rayN.Base
 {
     class ListViewFlickerFree : ListView
     {
diff --git a/v2rayN/v2rayN/StringEx.cs b/v2rayN/v2rayN/Base/StringEx.cs
similarity index 98%
rename from v2rayN/v2rayN/StringEx.cs
rename to v2rayN/v2rayN/Base/StringEx.cs
index 59916b32..e7f87a44 100644
--- a/v2rayN/v2rayN/StringEx.cs
+++ b/v2rayN/v2rayN/Base/StringEx.cs
@@ -2,7 +2,7 @@
 using System.IO;
 using System.Linq;
 
-namespace v2rayN
+namespace v2rayN.Base
 {
     static class StringEx
     {
diff --git a/v2rayN/v2rayN/HttpProxyHandler/WebClientEx.cs b/v2rayN/v2rayN/Base/WebClientEx.cs
similarity index 97%
rename from v2rayN/v2rayN/HttpProxyHandler/WebClientEx.cs
rename to v2rayN/v2rayN/Base/WebClientEx.cs
index 3b141f85..0a435692 100644
--- a/v2rayN/v2rayN/HttpProxyHandler/WebClientEx.cs
+++ b/v2rayN/v2rayN/Base/WebClientEx.cs
@@ -1,7 +1,7 @@
 using System;
 using System.Net;
 
-namespace v2rayN.HttpProxyHandler
+namespace v2rayN.Base
 {
     class WebClientEx : WebClient
     {
diff --git a/v2rayN/v2rayN/Forms/MainForm.Designer.cs b/v2rayN/v2rayN/Forms/MainForm.Designer.cs
index 5f161aba..d87e1cbf 100644
--- a/v2rayN/v2rayN/Forms/MainForm.Designer.cs
+++ b/v2rayN/v2rayN/Forms/MainForm.Designer.cs
@@ -31,7 +31,7 @@
             this.components = new System.ComponentModel.Container();
             System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(MainForm));
             this.splitContainer1 = new System.Windows.Forms.SplitContainer();
-            this.lvServers = new v2rayN.Forms.ListViewFlickerFree();
+            this.lvServers = new v2rayN.Base.ListViewFlickerFree();
             this.cmsLv = new System.Windows.Forms.ContextMenuStrip(this.components);
             this.menuAddVmessServer = new System.Windows.Forms.ToolStripMenuItem();
             this.menuAddShadowsocksServer = new System.Windows.Forms.ToolStripMenuItem();
@@ -784,7 +784,7 @@
         private System.Windows.Forms.GroupBox groupBox1;
         private System.Windows.Forms.GroupBox groupBox2;
         private System.Windows.Forms.TextBox txtMsgBox;
-        private v2rayN.Forms.ListViewFlickerFree lvServers;
+        private v2rayN.Base.ListViewFlickerFree lvServers;
         private System.Windows.Forms.NotifyIcon notifyMain;
         private System.Windows.Forms.ContextMenuStrip cmsMain;
         private System.Windows.Forms.ToolStripMenuItem menuExit;
diff --git a/v2rayN/v2rayN/Forms/MainForm.cs b/v2rayN/v2rayN/Forms/MainForm.cs
index f1e073ab..1d8b3586 100644
--- a/v2rayN/v2rayN/Forms/MainForm.cs
+++ b/v2rayN/v2rayN/Forms/MainForm.cs
@@ -8,6 +8,7 @@ using System.Windows.Forms;
 using v2rayN.Handler;
 using v2rayN.HttpProxyHandler;
 using v2rayN.Mode;
+using v2rayN.Base;
 
 namespace v2rayN.Forms
 {
@@ -15,7 +16,7 @@ namespace v2rayN.Forms
     {
         private V2rayHandler v2rayHandler;
         private PACListHandle pacListHandle;
-        private V2rayUpdateHandle v2rayUpdateHandle;
+        private DownloadHandle downloadHandle;
         private List<int> lvSelecteds = new List<int>();
         private StatisticsHandler statistics = null;
 
@@ -1279,10 +1280,10 @@ namespace v2rayN.Forms
 
         private void tsbCheckUpdateCore_Click(object sender, EventArgs e)
         {
-            if (v2rayUpdateHandle == null)
+            if (downloadHandle == null)
             {
-                v2rayUpdateHandle = new V2rayUpdateHandle();
-                v2rayUpdateHandle.AbsoluteCompleted += (sender2, args) =>
+                downloadHandle = new DownloadHandle();
+                downloadHandle.AbsoluteCompleted += (sender2, args) =>
                 {
                     if (args.Success)
                     {
@@ -1298,7 +1299,7 @@ namespace v2rayN.Forms
                             }
                             else
                             {
-                                v2rayUpdateHandle.DownloadFileAsync(config, url, false);
+                                downloadHandle.DownloadFileAsync(config, url, false);
                             }
                         }));
                     }
@@ -1307,7 +1308,7 @@ namespace v2rayN.Forms
                         AppendText(false, args.Msg);
                     }
                 };
-                v2rayUpdateHandle.UpdateCompleted += (sender2, args) =>
+                downloadHandle.UpdateCompleted += (sender2, args) =>
                 {
                     if (args.Success)
                     {
@@ -1318,7 +1319,7 @@ namespace v2rayN.Forms
                         {
                             CloseV2ray();
 
-                            string fileName = v2rayUpdateHandle.DownloadFileName;
+                            string fileName = downloadHandle.DownloadFileName;
                             fileName = Utils.GetPath(fileName);
                             using (ZipArchive archive = ZipFile.OpenRead(fileName))
                             {
@@ -1346,14 +1347,14 @@ namespace v2rayN.Forms
                         AppendText(false, args.Msg);
                     }
                 };
-                v2rayUpdateHandle.Error += (sender2, args) =>
+                downloadHandle.Error += (sender2, args) =>
                 {
                     AppendText(true, args.GetException().Message);
                 };
             }
 
             AppendText(false, UIRes.I18N("MsgStartUpdatingV2rayCore"));
-            v2rayUpdateHandle.AbsoluteV2rayCore(config);
+            downloadHandle.AbsoluteV2rayCore(config);
         }
 
         private void tsbCheckUpdatePACList_Click(object sender, EventArgs e)
@@ -1473,8 +1474,8 @@ namespace v2rayN.Forms
                     continue;
                 }
 
-                V2rayUpdateHandle v2rayUpdateHandle3 = new V2rayUpdateHandle();
-                v2rayUpdateHandle3.UpdateCompleted += (sender2, args) =>
+                DownloadHandle downloadHandle3 = new DownloadHandle();
+                downloadHandle3.UpdateCompleted += (sender2, args) =>
                 {
                     if (args.Success)
                     {
@@ -1503,12 +1504,12 @@ namespace v2rayN.Forms
                         AppendText(false, args.Msg);
                     }
                 };
-                v2rayUpdateHandle3.Error += (sender2, args) =>
+                downloadHandle3.Error += (sender2, args) =>
                 {
                     AppendText(true, args.GetException().Message);
                 };
 
-                v2rayUpdateHandle3.WebDownloadString(url);
+                downloadHandle3.WebDownloadString(url);
                 AppendText(false, $"{hashCode}{UIRes.I18N("MsgStartGettingSubscriptions")}");
             }
 
diff --git a/v2rayN/v2rayN/Forms/OptionSettingForm.cs b/v2rayN/v2rayN/Forms/OptionSettingForm.cs
index 777c1daa..b6cd232e 100644
--- a/v2rayN/v2rayN/Forms/OptionSettingForm.cs
+++ b/v2rayN/v2rayN/Forms/OptionSettingForm.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Windows.Forms;
 using v2rayN.Handler;
+using v2rayN.Base;
 
 namespace v2rayN.Forms
 {
@@ -381,8 +382,8 @@ namespace v2rayN.Forms
             for (int k = 0; k < lstUrl.Count; k++)
             {
                 var txt = lstTxt[k];
-                V2rayUpdateHandle v2rayUpdateHandle3 = new V2rayUpdateHandle();
-                v2rayUpdateHandle3.UpdateCompleted += (sender2, args) =>
+                DownloadHandle downloadHandle = new DownloadHandle();
+                downloadHandle.UpdateCompleted += (sender2, args) =>
                 {
                     if (args.Success)
                     {
@@ -398,12 +399,12 @@ namespace v2rayN.Forms
                         AppendText(false, args.Msg);
                     }
                 };
-                v2rayUpdateHandle3.Error += (sender2, args) =>
+                downloadHandle.Error += (sender2, args) =>
                 {
                     AppendText(true, args.GetException().Message);
                 };
 
-                v2rayUpdateHandle3.WebDownloadString(lstUrl[k]);
+                downloadHandle.WebDownloadString(lstUrl[k]);
             }
         }
         void AppendText(bool notify, string text)
diff --git a/v2rayN/v2rayN/Forms/SubSettingControl.cs b/v2rayN/v2rayN/Forms/SubSettingControl.cs
index a4ee2189..a3f09593 100644
--- a/v2rayN/v2rayN/Forms/SubSettingControl.cs
+++ b/v2rayN/v2rayN/Forms/SubSettingControl.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Windows.Forms;
+using v2rayN.Base;
 using v2rayN.Mode;
 
 namespace v2rayN.Forms
diff --git a/v2rayN/v2rayN/Handler/ConfigHandler.cs b/v2rayN/v2rayN/Handler/ConfigHandler.cs
index ba87e466..e4f48d0e 100644
--- a/v2rayN/v2rayN/Handler/ConfigHandler.cs
+++ b/v2rayN/v2rayN/Handler/ConfigHandler.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Net;
 using v2rayN.Mode;
+using v2rayN.Base;
 
 namespace v2rayN.Handler
 {
diff --git a/v2rayN/v2rayN/Handler/V2rayUpdateHandle.cs b/v2rayN/v2rayN/Handler/DownloadHandle.cs
similarity index 97%
rename from v2rayN/v2rayN/Handler/V2rayUpdateHandle.cs
rename to v2rayN/v2rayN/Handler/DownloadHandle.cs
index e26eff00..38b402a0 100644
--- a/v2rayN/v2rayN/Handler/V2rayUpdateHandle.cs
+++ b/v2rayN/v2rayN/Handler/DownloadHandle.cs
@@ -1,20 +1,15 @@
 using System;
-using System.Collections.Generic;
 using System.IO;
 using System.Net;
-using System.Text;
-using Newtonsoft.Json;
+using v2rayN.Base;
 using v2rayN.Mode;
-using v2rayN.Properties;
-using v2rayN.HttpProxyHandler;
-using System.Diagnostics;
 
 namespace v2rayN.Handler
 {
     /// <summary>
-    ///Update V2ray Core 
+    ///Download
     /// </summary>
-    class V2rayUpdateHandle
+    class DownloadHandle
     {
         public event EventHandler<ResultEventArgs> AbsoluteCompleted;
 
diff --git a/v2rayN/v2rayN/Handler/SpeedtestHandler.cs b/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
index cba9e741..6254107d 100644
--- a/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
+++ b/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
@@ -11,7 +11,7 @@ namespace v2rayN.Handler
 {
     class SpeedtestHandler
     {
-        private V2rayUpdateHandle v2rayUpdateHandle2;
+        private DownloadHandle downloadHandle2;
         private Config _config;
         private V2rayHandler _v2rayHandler;
         private List<int> _selecteds;
@@ -186,10 +186,10 @@ namespace v2rayN.Handler
 
             string url = Global.SpeedTestUrl;
             testCounter = 0;
-            if (v2rayUpdateHandle2 == null)
+            if (downloadHandle2 == null)
             {
-                v2rayUpdateHandle2 = new V2rayUpdateHandle();
-                v2rayUpdateHandle2.UpdateCompleted += (sender2, args) =>
+                downloadHandle2 = new DownloadHandle();
+                downloadHandle2.UpdateCompleted += (sender2, args) =>
                 {
                     if (args.Success)
                     {
@@ -204,7 +204,7 @@ namespace v2rayN.Handler
                         _updateFunc(ItemIndex, args.Msg);
                     }
                 };
-                v2rayUpdateHandle2.Error += (sender2, args) =>
+                downloadHandle2.Error += (sender2, args) =>
                 {
                     _updateFunc(ItemIndex, args.GetException().Message);
                     if (ServerSpeedTestSub(testCounter, url) != 0)
@@ -232,7 +232,7 @@ namespace v2rayN.Handler
 
                 testCounter++;
 
-                v2rayUpdateHandle2.DownloadFileAsync(_config, url,true);
+                downloadHandle2.DownloadFileAsync(_config, url,true);
 
                 return 0;
             }
diff --git a/v2rayN/v2rayN/Handler/V2rayConfigHandler.cs b/v2rayN/v2rayN/Handler/V2rayConfigHandler.cs
index f9e08998..6aadec52 100644
--- a/v2rayN/v2rayN/Handler/V2rayConfigHandler.cs
+++ b/v2rayN/v2rayN/Handler/V2rayConfigHandler.cs
@@ -1,10 +1,10 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using v2rayN.Mode;
-using System.Net;
-using System.Text;
 using System.Linq;
+using System.Net;
+using v2rayN.Base;
+using v2rayN.Mode;
 
 namespace v2rayN.Handler
 {
diff --git a/v2rayN/v2rayN/HttpProxyHandler/HttpProxyHandle.cs b/v2rayN/v2rayN/HttpProxyHandler/HttpProxyHandle.cs
index d2282c31..8195e1e1 100644
--- a/v2rayN/v2rayN/HttpProxyHandler/HttpProxyHandle.cs
+++ b/v2rayN/v2rayN/HttpProxyHandler/HttpProxyHandle.cs
@@ -10,21 +10,6 @@ namespace v2rayN.HttpProxyHandler
     /// </summary>
     class HttpProxyHandle
     {
-        private static string GetTimestamp(DateTime value)
-        {
-            return value.ToString("MMddHHmmssfff");
-        }
-
-        public static void ReSetPACProxy(Config config)
-        {
-            if (config.listenerType == 2)
-            {
-                //SysProxyHandle.SetIEProxy(false, false, null, null);
-                //PACServerHandle.Stop();
-            }
-            Update(config, false);
-        }
-
         public static bool Update(Config config, bool forceDisable)
         {
             int type = config.listenerType;
@@ -46,7 +31,6 @@ namespace v2rayN.HttpProxyHandler
                     if (type == 1)
                     {
                         PACServerHandle.Stop();
-                        PACFileWatcherHandle.StopWatch();
                         SysProxyHandle.SetIEProxy(true, true, $"{Global.Loopback}:{port}", null);
                     }
                     else if (type == 2)
@@ -55,12 +39,10 @@ namespace v2rayN.HttpProxyHandler
                         SysProxyHandle.SetIEProxy(true, false, null, pacUrl);
                         PACServerHandle.Stop();
                         PACServerHandle.Init(config);
-                        PACFileWatcherHandle.StartWatch(config);
                     }
                     else if (type == 3)
                     {
                         PACServerHandle.Stop();
-                        PACFileWatcherHandle.StopWatch();
                         SysProxyHandle.SetIEProxy(false, false, null, null);
                     }
                     else if (type == 4)
@@ -69,14 +51,12 @@ namespace v2rayN.HttpProxyHandler
                         SysProxyHandle.SetIEProxy(false, false, null, null);
                         PACServerHandle.Stop();
                         PACServerHandle.Init(config);
-                        PACFileWatcherHandle.StartWatch(config);
                     }
                 }
                 else
                 {
                     SysProxyHandle.SetIEProxy(false, false, null, null);
                     PACServerHandle.Stop();
-                    PACFileWatcherHandle.StopWatch();
                 }
             }
             catch (Exception ex)
@@ -168,9 +148,7 @@ namespace v2rayN.HttpProxyHandler
 
         public static string GetPacUrl()
         {
-            string pacUrl = $"http://{Global.Loopback}:{Global.pacPort}/pac/?t={GetTimestamp(DateTime.Now)}";
-
-
+            string pacUrl = $"http://{Global.Loopback}:{Global.pacPort}/pac/?t={ DateTime.Now.ToString("HHmmss")}";
             return pacUrl;
         }
     }
diff --git a/v2rayN/v2rayN/HttpProxyHandler/PACFileWatcherHandle.cs b/v2rayN/v2rayN/HttpProxyHandler/PACFileWatcherHandle.cs
deleted file mode 100644
index 08043d73..00000000
--- a/v2rayN/v2rayN/HttpProxyHandler/PACFileWatcherHandle.cs
+++ /dev/null
@@ -1,45 +0,0 @@
-using System.IO;
-using System.Windows.Forms;
-using v2rayN.Mode;
-
-namespace v2rayN.HttpProxyHandler
-{
-    /// <summary>
-    /// 提供PAC功能支持
-    /// </summary>
-    class PACFileWatcherHandle
-    {
-        private static FileSystemWatcher fileSystemWatcher;
-
-        private static long fileSize;
-
-        public static void StartWatch(Config config)
-        {
-            if (fileSystemWatcher == null)
-            {
-                fileSystemWatcher = new FileSystemWatcher(Utils.StartupPath());
-                fileSystemWatcher.Filter = "pac.txt";
-                fileSystemWatcher.NotifyFilter = NotifyFilters.Size;
-                fileSystemWatcher.Changed += (sender, args) =>
-                {
-                    var fileInfo = new FileInfo(args.FullPath);
-                    if (fileSize != fileInfo.Length)
-                    {
-                        fileSize = fileInfo.Length;
-                        HttpProxyHandle.ReSetPACProxy(config);
-                    }
-                    
-                };
-            }
-            fileSystemWatcher.EnableRaisingEvents = true;
-        }
-
-        public static void StopWatch()
-        {
-            if (fileSystemWatcher != null)
-            {
-                fileSystemWatcher.EnableRaisingEvents = false;
-            }
-        }
-    }
-}
diff --git a/v2rayN/v2rayN/HttpProxyHandler/PACListHandle.cs b/v2rayN/v2rayN/HttpProxyHandler/PACListHandle.cs
index 8aaa0822..0fa76f7c 100644
--- a/v2rayN/v2rayN/HttpProxyHandler/PACListHandle.cs
+++ b/v2rayN/v2rayN/HttpProxyHandler/PACListHandle.cs
@@ -4,6 +4,7 @@ using System.IO;
 using System.Net;
 using System.Text;
 using Newtonsoft.Json;
+using v2rayN.Base;
 using v2rayN.Mode;
 using v2rayN.Properties;
 
diff --git a/v2rayN/v2rayN/HttpProxyHandler/PACServerHandle.cs b/v2rayN/v2rayN/HttpProxyHandler/PACServerHandle.cs
index 21e3fd6c..cc2a033b 100644
--- a/v2rayN/v2rayN/HttpProxyHandler/PACServerHandle.cs
+++ b/v2rayN/v2rayN/HttpProxyHandler/PACServerHandle.cs
@@ -5,6 +5,7 @@ using System.Text;
 using v2rayN.Mode;
 using v2rayN.Properties;
 using v2rayN.Tool;
+using v2rayN.Base;
 
 namespace v2rayN.HttpProxyHandler
 {
diff --git a/v2rayN/v2rayN/HttpProxyHandler/SysProxyHandle.cs b/v2rayN/v2rayN/HttpProxyHandler/SysProxyHandle.cs
index e8056ec2..df06f21a 100644
--- a/v2rayN/v2rayN/HttpProxyHandler/SysProxyHandle.cs
+++ b/v2rayN/v2rayN/HttpProxyHandler/SysProxyHandle.cs
@@ -1,8 +1,9 @@
-using System;
+using Newtonsoft.Json;
+using System;
 using System.Diagnostics;
 using System.IO;
 using System.Text;
-using Newtonsoft.Json;
+using v2rayN.Base;
 using v2rayN.Mode;
 using v2rayN.Properties;
 using v2rayN.Tool;
diff --git a/v2rayN/v2rayN/Mode/Config.cs b/v2rayN/v2rayN/Mode/Config.cs
index 47b21e78..1586f621 100644
--- a/v2rayN/v2rayN/Mode/Config.cs
+++ b/v2rayN/v2rayN/Mode/Config.cs
@@ -1,6 +1,6 @@
 using System;
 using System.Collections.Generic;
-using System.Text.RegularExpressions;
+using v2rayN.Base;
 
 namespace v2rayN.Mode
 {
diff --git a/v2rayN/v2rayN/Tool/Utils.cs b/v2rayN/v2rayN/Tool/Utils.cs
index f8439463..2dd6acbf 100644
--- a/v2rayN/v2rayN/Tool/Utils.cs
+++ b/v2rayN/v2rayN/Tool/Utils.cs
@@ -18,6 +18,7 @@ using ZXing;
 using ZXing.Common;
 using ZXing.QrCode;
 using System.Security.Principal;
+using v2rayN.Base;
 
 namespace v2rayN
 {
diff --git a/v2rayN/v2rayN/v2rayN.csproj b/v2rayN/v2rayN/v2rayN.csproj
index 04dfe9e9..53b582b3 100644
--- a/v2rayN/v2rayN/v2rayN.csproj
+++ b/v2rayN/v2rayN/v2rayN.csproj
@@ -114,6 +114,7 @@
       <HintPath>LIB\System.Memory.dll</HintPath>
       <Private>False</Private>
     </Reference>
+    <Reference Include="System.Messaging" />
     <Reference Include="System.Net" />
     <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
@@ -140,7 +141,7 @@
     <Compile Include="Forms\AddServer4Form.Designer.cs">
       <DependentUpon>AddServer4Form.cs</DependentUpon>
     </Compile>
-    <Compile Include="Forms\ListViewFlickerFree.cs">
+    <Compile Include="Base\ListViewFlickerFree.cs">
       <SubType>Component</SubType>
     </Compile>
     <Compile Include="Forms\MainForm.cs">
@@ -181,17 +182,16 @@
     </Compile>
     <Compile Include="Handler\SpeedtestHandler.cs" />
     <Compile Include="Handler\StatisticsHandler.cs" />
-    <Compile Include="Handler\V2rayUpdateHandle.cs" />
-    <Compile Include="HttpProxyHandler\HttpWebServer.cs" />
-    <Compile Include="HttpProxyHandler\HttpWebServerB.cs" />
-    <Compile Include="HttpProxyHandler\PACFileWatcherHandle.cs" />
+    <Compile Include="Handler\DownloadHandle.cs" />
+    <Compile Include="Base\HttpWebServer.cs" />
+    <Compile Include="Base\HttpWebServerB.cs" />
     <Compile Include="HttpProxyHandler\PrivoxyHandler.cs" />
     <Compile Include="HttpProxyHandler\PACListHandle.cs" />
     <Compile Include="HttpProxyHandler\PACServerHandle.cs" />
     <Compile Include="HttpProxyHandler\ProxySetting.cs" />
     <Compile Include="HttpProxyHandler\SysProxyHandle.cs" />
     <Compile Include="HttpProxyHandler\HttpProxyHandle.cs" />
-    <Compile Include="HttpProxyHandler\WebClientEx.cs">
+    <Compile Include="Base\WebClientEx.cs">
       <SubType>Component</SubType>
     </Compile>
     <Compile Include="Mode\EMove.cs" />
@@ -208,7 +208,7 @@
       <DesignTime>True</DesignTime>
       <DependentUpon>ResUI.resx</DependentUpon>
     </Compile>
-    <Compile Include="StringEx.cs">
+    <Compile Include="Base\StringEx.cs">
       <SubType>Code</SubType>
     </Compile>
     <Compile Include="Forms\AddServerForm.cs">