diff --git a/v2rayN/v2rayN/Forms/MainForm.cs b/v2rayN/v2rayN/Forms/MainForm.cs
index 11160913..e07386bf 100644
--- a/v2rayN/v2rayN/Forms/MainForm.cs
+++ b/v2rayN/v2rayN/Forms/MainForm.cs
@@ -30,6 +30,7 @@ namespace v2rayN.Forms
             this.WindowState = FormWindowState.Minimized;
             HideForm();
             this.Text = Utils.GetVersion();
+            Global.processJob = new Job();
 
             Application.ApplicationExit += (sender, args) =>
             {
diff --git a/v2rayN/v2rayN/Global.cs b/v2rayN/v2rayN/Global.cs
index 3cdfadea..5953ef64 100644
--- a/v2rayN/v2rayN/Global.cs
+++ b/v2rayN/v2rayN/Global.cs
@@ -161,7 +161,7 @@ namespace v2rayN
             slow = 3000
         }
         public const string StatisticLogOverall = "StatisticLogOverall.json";
-        
+
         public const string IEProxyExceptions = "<local>;localhost;127.*;10.*;172.16.*;172.17.*;172.18.*;172.19.*;172.20.*;172.21.*;172.22.*;172.23.*;172.24.*;172.25.*;172.26.*;172.27.*;172.28.*;172.29.*;172.30.*;172.31.*;172.32.*";
 
         #endregion
@@ -216,6 +216,11 @@ namespace v2rayN
             get; set;
         }
 
+        public static Job processJob
+        {
+            get; set;
+        }
+
         #endregion
 
 
diff --git a/v2rayN/v2rayN/Handler/V2rayHandler.cs b/v2rayN/v2rayN/Handler/V2rayHandler.cs
index a30f28df..aacaa51f 100644
--- a/v2rayN/v2rayN/Handler/V2rayHandler.cs
+++ b/v2rayN/v2rayN/Handler/V2rayHandler.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
+using System.Text;
 using v2rayN.Mode;
 
 namespace v2rayN.Handler
@@ -147,6 +148,7 @@ namespace v2rayN.Handler
 
                 Process p = new Process();
                 p.StartInfo.FileName = fileName;
+                p.StartInfo.WorkingDirectory = Utils.StartupPath();
                 p.StartInfo.UseShellExecute = false;
                 p.StartInfo.RedirectStandardOutput = true;
                 p.StartInfo.CreateNoWindow = true;
@@ -162,6 +164,8 @@ namespace v2rayN.Handler
                 p.Start();
                 p.BeginOutputReadLine();
                 processId = p.Id;
+
+                Global.processJob.AddProcess(p.Handle);
             }
             catch (Exception ex)
             {
diff --git a/v2rayN/v2rayN/HttpProxyHandler/HttpProxyHandle.cs b/v2rayN/v2rayN/HttpProxyHandler/HttpProxyHandle.cs
index e87cfcf4..a2e4e486 100644
--- a/v2rayN/v2rayN/HttpProxyHandler/HttpProxyHandle.cs
+++ b/v2rayN/v2rayN/HttpProxyHandler/HttpProxyHandle.cs
@@ -77,7 +77,7 @@ namespace v2rayN.HttpProxyHandler
                 int localPort = config.GetLocalPort(Global.InboundSocks);
                 if (localPort > 0)
                 {
-                    PrivoxyHandler.Instance.Start(localPort, config);
+                    PrivoxyHandler.Instance.Restart(localPort, config);
                     if (PrivoxyHandler.Instance.RunningPort > 0)
                     {
                         Global.sysAgent = true;
diff --git a/v2rayN/v2rayN/HttpProxyHandler/PrivoxyHandler.cs b/v2rayN/v2rayN/HttpProxyHandler/PrivoxyHandler.cs
index baa9fa94..2fa34824 100644
--- a/v2rayN/v2rayN/HttpProxyHandler/PrivoxyHandler.cs
+++ b/v2rayN/v2rayN/HttpProxyHandler/PrivoxyHandler.cs
@@ -22,18 +22,17 @@ namespace v2rayN.HttpProxyHandler
 
         private static int _uid;
         private static string _uniqueConfigFile;
-        private static Job _privoxyJob;
         private Process _process;
+        private static string _privoxyName = "v2ray_privoxy";
 
         static PrivoxyHandler()
         {
             try
             {
-                _uid = Application.StartupPath.GetHashCode(); // Currently we use ss's StartupPath to identify different Privoxy instance.
+                _uid = Application.StartupPath.GetHashCode();
                 _uniqueConfigFile = string.Format("privoxy_{0}.conf", _uid);
-                _privoxyJob = new Job();
 
-                FileManager.UncompressFile(Utils.GetTempPath("v2ray_privoxy.exe"), Resources.privoxy_exe);
+                FileManager.UncompressFile(Utils.GetTempPath($"{_privoxyName}.exe"), Resources.privoxy_exe);
             }
             catch (IOException ex)
             {
@@ -41,11 +40,6 @@ namespace v2rayN.HttpProxyHandler
             }
         }
 
-        private PrivoxyHandler()
-        {
-
-        }
-
         /// <summary>
         /// 单例
         /// </summary>
@@ -66,17 +60,20 @@ namespace v2rayN.HttpProxyHandler
             get; set;
         }
 
+        public void Restart(int localPort, Config config)
+        {
+            Stop();
+            Start(localPort, config);
+        }
+
+
         public void Start(int localPort, Config config)
         {
             try
             {
                 if (_process == null)
                 {
-                    Process[] existingPrivoxy = Process.GetProcessesByName("v2ray_privoxy");
-                    foreach (Process p in existingPrivoxy.Where(IsChildProcess))
-                    {
-                        KillProcess(p);
-                    }
+
                     string privoxyConfig = Resources.privoxy_conf;
                     RunningPort = config.GetLocalPort(Global.InboundHttp);
                     privoxyConfig = privoxyConfig.Replace("__SOCKS_PORT__", localPort.ToString());
@@ -96,7 +93,7 @@ namespace v2rayN.HttpProxyHandler
                         // Configure the process using the StartInfo properties.
                         StartInfo =
                     {
-                        FileName = "v2ray_privoxy.exe",
+                        FileName = $"{_privoxyName}.exe",
                         Arguments = _uniqueConfigFile,
                         WorkingDirectory = Utils.GetTempPath(),
                         WindowStyle = ProcessWindowStyle.Hidden,
@@ -110,12 +107,13 @@ namespace v2rayN.HttpProxyHandler
                      * Add this process to job obj associated with this ss process, so that
                      * when ss exit unexpectedly, this process will be forced killed by system.
                      */
-                    _privoxyJob.AddProcess(_process.Handle);
 
+                    Global.processJob.AddProcess(_process.Handle);
                 }
             }
             catch (Exception ex)
             {
+                RunningPort = 0;
                 Utils.SaveLog(ex.Message, ex);
             }
         }
@@ -129,6 +127,14 @@ namespace v2rayN.HttpProxyHandler
                 _process = null;
                 RunningPort = 0;
             }
+            else
+            {
+                Process[] existingPrivoxy = Process.GetProcessesByName(_privoxyName);
+                foreach (Process p in existingPrivoxy.Where(IsChildProcess))
+                {
+                    KillProcess(p);
+                }
+            }
         }
 
         private static void KillProcess(Process p)
@@ -168,7 +174,7 @@ namespace v2rayN.HttpProxyHandler
                  */
                 var path = process.MainModule.FileName;
 
-                return Utils.GetTempPath("v2ray_privoxy.exe").Equals(path);
+                return Utils.GetTempPath($"{_privoxyName}.exe").Equals(path);
 
             }
             catch (Exception ex)
diff --git a/v2rayN/v2rayN/Tool/Job.cs b/v2rayN/v2rayN/Tool/Job.cs
index 64415589..daee62cf 100644
--- a/v2rayN/v2rayN/Tool/Job.cs
+++ b/v2rayN/v2rayN/Tool/Job.cs
@@ -54,7 +54,7 @@ namespace v2rayN
 
             if (!succ)
             {
-                //Logging.Error("Failed to call AssignProcessToJobObject! GetLastError=" + Marshal.GetLastWin32Error());
+                Utils.SaveLog("Failed to call AssignProcessToJobObject! GetLastError=" + Marshal.GetLastWin32Error());
             }
 
             return succ;