Update CHANGES and bump version

Update README.md

CHANGES

@@ -1,3 +1,13 @@
+3.3.5 2016-11-7
+- Improve system power mode handling
+- Update mbed TLS to 2.4.0
+- Check .NET Framework version on startup
+
+3.3.4 2016-10-21
+- Fix IE dial-up and VPN connection proxy settings
+  not changed since release 3.3.3.
+- Fix a UI bug
+
 3.3.3 2016-10-10
 - Add timeout support for server and forward proxy,
   only integer is allowed

README.md

@@ -32,7 +32,7 @@ port in `Servers -> Edit Servers`
 
 1. You can change PAC rules by editing the PAC file. When you save the PAC file
 with any editor, Shadowsocks will notify browsers about the change automatically
-2. You can also update PAC file from [GFWList] (maintained by 3rd party)
+2. You can also update PAC file from [GFWList] \(maintained by 3rd party)
 3. You can also use online PAC URL
 
 #### Server Auto Switching
@@ -96,16 +96,18 @@ system temp folder, create a `shadowsocks_portable_mode.txt` into shadowsocks fo
 
 #### Develop
 
-Visual Studio 2015 is required.
+[Visual Studio 2015] & [.NET Framework 4.6.2 Developer Pack] are required.
 
 #### License
 
 GPLv3
 
 
-[Appveyor]:       https://ci.appveyor.com/project/wongsyrone/shadowsocks-windows-0cn3i
-[Build Status]:   https://ci.appveyor.com/api/projects/status/47784ryn365vw56w/branch/master?svg=true
+[Appveyor]:       https://ci.appveyor.com/project/Noisyfox/shadowsocks-windows
+[Build Status]:   https://ci.appveyor.com/api/projects/status/04idbevayrghcrh7/branch/master?svg=true
 [latest release]: https://github.com/shadowsocks/shadowsocks-csharp/releases
 [GFWList]:        https://github.com/gfwlist/gfwlist
 [Servers]:        https://github.com/shadowsocks/shadowsocks/wiki/Ports-and-Clients#linux--server-side
 [中文说明]:       https://github.com/shadowsocks/shadowsocks-windows/wiki/Shadowsocks-Windows-%E4%BD%BF%E7%94%A8%E8%AF%B4%E6%98%8E
+[Visual Studio 2015]: https://www.visualstudio.com/downloads/
+[.NET Framework 4.6.2 Developer Pack]: https://www.microsoft.com/download/details.aspx?id=53321

shadowsocks-csharp/Controller/Service/UpdateChecker.cs

@@ -23,7 +23,7 @@ namespace Shadowsocks.Controller
         public string LatestVersionLocalName;
         public event EventHandler CheckUpdateCompleted;
 
-        public const string Version = "3.3.3";
+        public const string Version = "3.3.5";
 
         private class CheckUpdateTimer : System.Timers.Timer
         {

shadowsocks-csharp/Controller/System/AutoStartup.cs

@@ -15,7 +15,7 @@ namespace Shadowsocks.Controller
             try
             {
                 string path = Application.ExecutablePath;
-                runKey = Utils.OpenUserRegKey(@"Software\Microsoft\Windows\CurrentVersion\Run", true);
+                runKey = Utils.OpenRegKey(@"Software\Microsoft\Windows\CurrentVersion\Run", true);
                 if ( runKey == null ) {
                     Logging.Error( @"Cannot find HKCU\Software\Microsoft\Windows\CurrentVersion\Run" );
                     return false;
@@ -54,7 +54,7 @@ namespace Shadowsocks.Controller
             try
             {
                 string path = Application.ExecutablePath;
-                runKey = Utils.OpenUserRegKey(@"Software\Microsoft\Windows\CurrentVersion\Run", true);
+                runKey = Utils.OpenRegKey(@"Software\Microsoft\Windows\CurrentVersion\Run", true);
                 if (runKey == null) {
                     Logging.Error(@"Cannot find HKCU\Software\Microsoft\Windows\CurrentVersion\Run");
                     return false;

shadowsocks-csharp/Data/cn.txt

@@ -130,6 +130,7 @@ System Proxy On: =系统代理已启用：
 Running: Port {0}=正在运行：端口 {0}
 Unexpected error, shadowsocks will exit. Please report to=非预期错误，Shadowsocks将退出。请提交此错误到
 Unsupported operating system, use Windows Vista at least.=不支持的操作系统版本，最低需求为Windows Vista。
+Unsupported .NET Framework, please update to 4.6.2 or later.=当前 .NET Framework 版本过低，请升级至4.6.2或更新版本。
 Proxy request failed=代理请求失败
 Proxy handshake failed=代理握手失败
 Register hotkey failed=注册热键失败

shadowsocks-csharp/Data/zh_tw.txt

@@ -130,6 +130,7 @@ System Proxy On: =系統代理已啟用：
 Running: Port {0}=正在運行：連接埠號碼 {0}
 Unexpected error, shadowsocks will exit. Please report to=非預期錯誤，Shadowsocks將退出。請提交此錯誤到
 Unsupported operating system, use Windows Vista at least.=不支持的作業系統版本，最低需求為Windows Vista。
+Unsupported .NET Framework, please update to 4.6.2 or later.=當前 .NET Framework 版本過低，最低需求為4.6.2。
 Proxy request failed=代理請求失敗
 Proxy handshake failed=代理握手失敗
 Register hotkey failed=註冊捷徑鍵失敗

shadowsocks-csharp/Encryption/IVEncryptor.cs

@@ -237,10 +237,10 @@ namespace Shadowsocks.Encryption
 
         protected static void randBytes(byte[] buf, int length)
         {
-            byte[] temp = new byte[length];
-            RNGCryptoServiceProvider rngServiceProvider = new RNGCryptoServiceProvider();
-            rngServiceProvider.GetBytes(temp);
-            temp.CopyTo(buf, 0);
+            using (RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider())
+            {
+                rng.GetBytes(buf, 0, length);
+            }
         }
 
         public override void Encrypt(byte[] buf, int length, byte[] outbuf, out int outlength)

shadowsocks-csharp/Program.cs

@@ -31,6 +31,17 @@ namespace Shadowsocks
                 return;
             }
 
+            // Check .NET Framework version
+            if (!Utils.IsSupportedRuntimeVersion())
+            {
+                MessageBox.Show(I18N.GetString("Unsupported .NET Framework, please update to 4.6.2 or later."),
+                "Shadowsocks Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
+
+                Process.Start(
+                    "http://dotnetsocial.cloudapp.net/GetDotnet?tfm=.NETFramework,Version=v4.6.2");
+                return;
+            }
+
             Utils.ReleaseMemory(true);
             using (Mutex mutex = new Mutex(false, $"Global\\Shadowsocks_{Application.StartupPath.GetHashCode()}"))
             {
@@ -43,7 +54,6 @@ namespace Shadowsocks
                 SystemEvents.PowerModeChanged += SystemEvents_PowerModeChanged;
                 Application.EnableVisualStyles();
                 Application.SetCompatibleTextRenderingDefault(false);
-                Application.ApplicationExit += (sender, args) => HotKeys.Destroy();
 
                 if (!mutex.WaitOne(0, false))
                 {
@@ -85,7 +95,7 @@ namespace Shadowsocks
                 Logging.Error(e.ExceptionObject?.ToString());
                 MessageBox.Show(
                     $"{I18N.GetString("Unexpected error, shadowsocks will exit. Please report to")} https://github.com/shadowsocks/shadowsocks-windows/issues {Environment.NewLine}{e.ExceptionObject?.ToString()}",
-                    "Shadowsocks Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    "Shadowsocks non-UI Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 Application.Exit();
             }
         }
@@ -96,7 +106,7 @@ namespace Shadowsocks
             Logging.Error(errorMsg);
             MessageBox.Show(
                 $"{I18N.GetString("Unexpected error, shadowsocks will exit. Please report to")} https://github.com/shadowsocks/shadowsocks-windows/issues {Environment.NewLine}{errorMsg}",
-                "Shadowsocks Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                "Shadowsocks UI Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
             Application.Exit();
         }
 
@@ -108,7 +118,7 @@ namespace Shadowsocks
                     Logging.Info("os wake up");
                     if (_controller != null)
                     {
-                        System.Timers.Timer timer = new System.Timers.Timer(5 * 1000);
+                        System.Timers.Timer timer = new System.Timers.Timer(10 * 1000);
                         timer.Elapsed += Timer_Elapsed;
                         timer.AutoReset = false;
                         timer.Enabled = true;
@@ -116,7 +126,11 @@ namespace Shadowsocks
                     }
                     break;
                 case PowerModes.Suspend:
-                    _controller?.Stop();
+                    if (_controller != null)
+                    {
+                        _controller.Stop();
+                        Logging.Info("controller stopped");
+                    }
                     Logging.Info("os suspend");
                     break;
             }
@@ -126,7 +140,11 @@ namespace Shadowsocks
         {
             try
             {
-                _controller?.Start();
+                if (_controller != null)
+                {
+                    _controller.Start();
+                    Logging.Info("controller started");
+                }
             }
             catch (Exception ex)
             {
@@ -150,6 +168,8 @@ namespace Shadowsocks
 
         private static void Application_ApplicationExit(object sender, EventArgs e)
         {
+            SystemEvents.PowerModeChanged -= SystemEvents_PowerModeChanged;
+            HotKeys.Destroy();
             if (_controller != null)
             {
                 _controller.Stop();

shadowsocks-csharp/Util/ProcessManagement/Job.cs

@@ -11,21 +11,7 @@ namespace Shadowsocks.Util.ProcessManagement
      */
     public class Job : IDisposable
     {
-        [DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
-        private static extern IntPtr CreateJobObject(IntPtr a, string lpName);
-
-        [DllImport("kernel32.dll", SetLastError = true)]
-        private static extern bool SetInformationJobObject(IntPtr hJob, JobObjectInfoType infoType, IntPtr lpJobObjectInfo, UInt32 cbJobObjectInfoLength);
-
-        [DllImport("kernel32.dll", SetLastError = true)]
-        private static extern bool AssignProcessToJobObject(IntPtr job, IntPtr process);
-
-        [DllImport("kernel32.dll", SetLastError = true)]
-        [return: MarshalAs(UnmanagedType.Bool)]
-        private static extern bool CloseHandle(IntPtr hObject);
-
         private IntPtr handle = IntPtr.Zero;
-        private bool disposed;
 
         public Job()
         {
@@ -62,36 +48,6 @@ namespace Shadowsocks.Util.ProcessManagement
             }
         }
 
-        public void Dispose()
-        {
-            Dispose(true);
-            GC.SuppressFinalize(this);
-        }
-
-        private void Dispose(bool disposing)
-        {
-            if (disposed) return;
-            disposed = true;
-
-            if (disposing) { }
-
-            Close();
-        }
-
-        private void Close()
-        {
-            if (handle != IntPtr.Zero)
-            {
-                CloseHandle(handle);
-                handle = IntPtr.Zero;
-            }
-        }
-
-        ~Job()
-        {
-            Dispose(false);
-        }
-
         public bool AddProcess(IntPtr processHandle)
         {
             var succ = AssignProcessToJobObject(handle, processHandle);
@@ -109,6 +65,56 @@ namespace Shadowsocks.Util.ProcessManagement
             return AddProcess(Process.GetProcessById(processId).Handle);
         }
 
+        #region IDisposable
+
+        private bool disposed;
+
+        public void Dispose()
+        {
+            Dispose(true);
+            GC.SuppressFinalize(this);
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposed) return;
+            disposed = true;
+
+            if (disposing)
+            {
+                // no managed objects to free
+            }
+
+            if (handle != IntPtr.Zero)
+            {
+                CloseHandle(handle);
+                handle = IntPtr.Zero;
+            }
+        }
+
+        ~Job()
+        {
+            Dispose(false);
+        }
+
+        #endregion
+
+        #region Interop
+
+        [DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
+        private static extern IntPtr CreateJobObject(IntPtr a, string lpName);
+
+        [DllImport("kernel32.dll", SetLastError = true)]
+        private static extern bool SetInformationJobObject(IntPtr hJob, JobObjectInfoType infoType, IntPtr lpJobObjectInfo, UInt32 cbJobObjectInfoLength);
+
+        [DllImport("kernel32.dll", SetLastError = true)]
+        private static extern bool AssignProcessToJobObject(IntPtr job, IntPtr process);
+
+        [DllImport("kernel32.dll", SetLastError = true)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        private static extern bool CloseHandle(IntPtr hObject);
+
+        #endregion
     }
 
     #region Helper classes

shadowsocks-csharp/Util/SystemProxy/INTERNET_OPTION.cs

@@ -30,7 +30,13 @@ namespace Shadowsocks.Util.SystemProxy
         INTERNET_OPTION_SETTINGS_CHANGED = 39,
 
         // Causes the proxy data to be reread from the registry for a handle.
-        INTERNET_OPTION_REFRESH = 37
+        INTERNET_OPTION_REFRESH = 37,
+
+        // Alerts the current WinInet instance that proxy settings have changed
+        // and that they must update with the new settings.
+        // To alert all available WinInet instances, set the Buffer parameter of
+        // InternetSetOption to NULL and BufferLength to 0 when passing this option.
+        INTERNET_OPTION_PROXY_SETTINGS_CHANGED = 95
 
     }
 }

shadowsocks-csharp/Util/SystemProxy/INTERNET_PER_CONN_OPTION_LIST.cs

@@ -22,7 +22,7 @@ using System.Runtime.InteropServices;
 
 namespace Shadowsocks.Util.SystemProxy
 {
-    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
     public struct INTERNET_PER_CONN_OPTION_LIST : IDisposable
     {
         public int Size;

shadowsocks-csharp/Util/SystemProxy/NativeMethods.cs

@@ -26,7 +26,7 @@ namespace Shadowsocks.Util.SystemProxy
         /// <summary>
         /// Sets an Internet option.
         /// </summary>
-        [DllImport("wininet.dll", CharSet = CharSet.Ansi, SetLastError = true)]
+        [DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]
         internal static extern bool InternetSetOption(
             IntPtr hInternet,
             INTERNET_OPTION dwOption,

shadowsocks-csharp/Util/SystemProxy/RAS.cs

@@ -0,0 +1,148 @@
+using System.Runtime.InteropServices;
+
+namespace Shadowsocks.Util.SystemProxy
+{
+    internal static class RemoteAccessService
+    {
+        private enum RasFieldSizeConstants
+        {
+            #region original header
+
+            //#if (WINVER >= 0x400)
+            //#define RAS_MaxEntryName      256
+            //#define RAS_MaxDeviceName     128
+            //#define RAS_MaxCallbackNumber RAS_MaxPhoneNumber
+            //#else
+            //#define RAS_MaxEntryName      20
+            //#define RAS_MaxDeviceName     32
+            //#define RAS_MaxCallbackNumber 48
+            //#endif
+
+            #endregion
+
+            RAS_MaxEntryName = 256,
+            RAS_MaxPath = 260
+        }
+
+        private const int ERROR_SUCCESS = 0;
+        private const int RASBASE = 600;
+        private const int ERROR_BUFFER_TOO_SMALL = RASBASE + 3;
+
+        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
+        private struct RasEntryName
+        {
+            #region original header
+
+            //#define RASENTRYNAMEW struct tagRASENTRYNAMEW
+            //RASENTRYNAMEW
+            //{
+            //    DWORD dwSize;
+            //    WCHAR szEntryName[RAS_MaxEntryName + 1];
+            //
+            //#if (WINVER >= 0x500)
+            //    //
+            //    // If this flag is REN_AllUsers then its a
+            //    // system phonebook.
+            //    //
+            //    DWORD dwFlags;
+            //    WCHAR szPhonebookPath[MAX_PATH + 1];
+            //#endif
+            //};
+            //
+            //#define RASENTRYNAMEA struct tagRASENTRYNAMEA
+            //RASENTRYNAMEA
+            //{
+            //    DWORD dwSize;
+            //    CHAR szEntryName[RAS_MaxEntryName + 1];
+            //
+            //#if (WINVER >= 0x500)
+            //    DWORD dwFlags;
+            //    CHAR  szPhonebookPath[MAX_PATH + 1];
+            //#endif
+            //};
+
+            #endregion
+
+            public int dwSize;
+
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst=(int)RasFieldSizeConstants.RAS_MaxEntryName + 1)]
+            public string szEntryName;
+
+            public int dwFlags;
+
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst=(int)RasFieldSizeConstants.RAS_MaxPath + 1)]
+            public string szPhonebookPath;
+        }
+
+        [DllImport("rasapi32.dll", CharSet = CharSet.Auto)]
+        private static extern uint RasEnumEntries(
+            // reserved, must be NULL
+            string reserved,
+            // pointer to full path and file name of phone-book file
+            string lpszPhonebook,
+            // buffer to receive phone-book entries
+            [In, Out] RasEntryName[] lprasentryname,
+            // size in bytes of buffer
+            ref int lpcb,
+            // number of entries written to buffer
+            out int lpcEntries
+        );
+
+        /// <summary>
+        /// Get all entries from RAS
+        /// </summary>
+        /// <param name="allConns"></param>
+        /// <returns>
+        /// 0: success with entries
+        /// 1: success but no entries found
+        /// 2: failed
+        /// </returns>
+        public static uint GetAllConns(ref string[] allConns)
+        {
+            int lpNames = 0;
+            int entryNameSize = 0;
+            int lpSize = 0;
+            uint retval = ERROR_SUCCESS;
+            RasEntryName[] names = null;
+
+            entryNameSize = Marshal.SizeOf(typeof(RasEntryName));
+
+            // Windows Vista or later:  To determine the required buffer size, call RasEnumEntries
+            // with lprasentryname set to NULL. The variable pointed to by lpcb should be set to zero.
+            // The function will return the required buffer size in lpcb and an error code of ERROR_BUFFER_TOO_SMALL.
+            retval = RasEnumEntries(null, null, null, ref lpSize, out lpNames);
+
+            if (retval == ERROR_BUFFER_TOO_SMALL)
+            {
+                names = new RasEntryName[lpNames];
+                for (int i = 0; i < names.Length; i++)
+                {
+                    names[i].dwSize = entryNameSize;
+                }
+
+                retval = RasEnumEntries(null, null, names, ref lpSize, out lpNames);
+            }
+
+            if (retval == ERROR_SUCCESS)
+            {
+                if (lpNames == 0)
+                {
+                    // no entries found.
+                    return 1;
+                }
+
+                allConns = new string[names.Length];
+
+                for (int i = 0; i < names.Length; i++)
+                {
+                    allConns[i] = names[i].szEntryName;
+                }
+                return 0;
+            }
+            else
+            {
+                return 2;
+            }
+        }
+    }
+}

shadowsocks-csharp/Util/SystemProxy/WinINet.cs

@@ -19,17 +19,19 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Runtime.InteropServices;
+using Shadowsocks.Controller;
 
 namespace Shadowsocks.Util.SystemProxy
 {
     public static class WinINet
     {
         /// <summary>
-        /// Set IE settings for LAN connection.
+        /// Set IE settings.
         /// </summary>
-        public static void SetIEProxy(bool enable, bool global, string proxyServer, string pacURL)
+        private static void SetIEProxy(bool enable, bool global, string proxyServer, string pacURL, string connName)
         {
             List<INTERNET_PER_CONN_OPTION> _optionlist = new List<INTERNET_PER_CONN_OPTION>();
+
             if (enable)
             {
                 if (global)
@@ -38,17 +40,18 @@ namespace Shadowsocks.Util.SystemProxy
                     _optionlist.Add(new INTERNET_PER_CONN_OPTION
                     {
                         dwOption = (int)INTERNET_PER_CONN_OptionEnum.INTERNET_PER_CONN_FLAGS_UI,
-                        Value = { dwValue = (int)INTERNET_OPTION_PER_CONN_FLAGS_UI.PROXY_TYPE_PROXY }
+                        Value = { dwValue = (int)(INTERNET_OPTION_PER_CONN_FLAGS_UI.PROXY_TYPE_PROXY
+                                                | INTERNET_OPTION_PER_CONN_FLAGS_UI.PROXY_TYPE_DIRECT) }
                     });
                     _optionlist.Add(new INTERNET_PER_CONN_OPTION
                     {
                         dwOption = (int)INTERNET_PER_CONN_OptionEnum.INTERNET_PER_CONN_PROXY_SERVER,
-                        Value = { pszValue = Marshal.StringToHGlobalAnsi(proxyServer) }
+                        Value = { pszValue = Marshal.StringToHGlobalAuto(proxyServer) }
                     });
                     _optionlist.Add(new INTERNET_PER_CONN_OPTION
                     {
                         dwOption = (int)INTERNET_PER_CONN_OptionEnum.INTERNET_PER_CONN_PROXY_BYPASS,
-                        Value = { pszValue = Marshal.StringToHGlobalAnsi("<local>") }
+                        Value = { pszValue = Marshal.StringToHGlobalAuto("<local>") }
                     });
                 }
                 else
@@ -62,7 +65,7 @@ namespace Shadowsocks.Util.SystemProxy
                     _optionlist.Add(new INTERNET_PER_CONN_OPTION
                     {
                         dwOption = (int)INTERNET_PER_CONN_OptionEnum.INTERNET_PER_CONN_AUTOCONFIG_URL,
-                        Value = { pszValue = Marshal.StringToHGlobalAnsi(pacURL) }
+                        Value = { pszValue = Marshal.StringToHGlobalAuto(pacURL) }
                     });
                 }
             }
@@ -101,8 +104,9 @@ namespace Shadowsocks.Util.SystemProxy
             // Return the unmanaged size of an object in bytes.
             optionList.Size = Marshal.SizeOf(optionList);
 
-            // IntPtr.Zero means LAN connection.
-            optionList.Connection = IntPtr.Zero;
+            optionList.Connection = connName.IsNullOrEmpty()
+                ? IntPtr.Zero // NULL means LAN
+                : Marshal.StringToHGlobalAuto(connName); // TODO: not working if contains Chinese
 
             optionList.OptionCount = _optionlist.Count;
             optionList.OptionError = 0;
@@ -132,15 +136,47 @@ namespace Shadowsocks.Util.SystemProxy
 
             // Notify the system that the registry settings have been changed and cause
             // the proxy data to be reread from the registry for a handle.
-            NativeMethods.InternetSetOption(
+            bReturn = NativeMethods.InternetSetOption(
                 IntPtr.Zero,
-                INTERNET_OPTION.INTERNET_OPTION_SETTINGS_CHANGED,
+                INTERNET_OPTION.INTERNET_OPTION_PROXY_SETTINGS_CHANGED,
                 IntPtr.Zero, 0);
+            if (!bReturn)
+            {
+                Logging.Error("InternetSetOption:INTERNET_OPTION_PROXY_SETTINGS_CHANGED");
+            }
 
-            NativeMethods.InternetSetOption(
+            bReturn = NativeMethods.InternetSetOption(
                 IntPtr.Zero,
                 INTERNET_OPTION.INTERNET_OPTION_REFRESH,
                 IntPtr.Zero, 0);
+            if (!bReturn)
+            {
+                Logging.Error("InternetSetOption:INTERNET_OPTION_REFRESH");
+            }
+        }
+
+        public static void SetIEProxy(bool enable, bool global, string proxyServer, string pacURL)
+        {
+            string[] allConnections = null;
+            var ret = RemoteAccessService.GetAllConns(ref allConnections);
+
+            if (ret == 2)
+                throw new Exception("Cannot get all connections");
+
+            if (ret == 1)
+            {
+                // no entries, only set LAN
+                SetIEProxy(enable, global, proxyServer, pacURL, null);
+            }
+            else if (ret == 0)
+            {
+                // found entries, set LAN and each connection
+                SetIEProxy(enable, global, proxyServer, pacURL, null);
+                foreach (string connName in allConnections)
+                {
+                    SetIEProxy(enable, global, proxyServer, pacURL, connName);
+                }
+            }
         }
     }
 }

shadowsocks-csharp/Util/Util.cs

@@ -1,11 +1,8 @@
 using System;
-using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
 using System.IO.Compression;
-using System.Linq;
 using System.Runtime.InteropServices;
-using System.Security;
 using System.Windows.Forms;
 using Microsoft.Win32;
 using Shadowsocks.Controller;
@@ -211,7 +208,7 @@ namespace Shadowsocks.Util
             return new BandwidthScaleInfo(f, unit, scale);
         }
 
-        public static RegistryKey OpenUserRegKey( string name, bool writable )
+        public static RegistryKey OpenRegKey(string name, bool writable, RegistryHive hive = RegistryHive.CurrentUser)
         {
             // we are building x86 binary for both x86 and x64, which will
             // cause problem when opening registry key
@@ -219,29 +216,25 @@ namespace Shadowsocks.Util
             if (name.IsNullOrEmpty()) throw new ArgumentException(nameof(name));
             try
             {
-                RegistryKey userKey = RegistryKey.OpenBaseKey(RegistryHive.CurrentUser,
+                RegistryKey userKey = RegistryKey.OpenBaseKey(hive,
                         Environment.Is64BitOperatingSystem ? RegistryView.Registry64 : RegistryView.Registry32)
                     .OpenSubKey(name, writable);
                 return userKey;
             }
-            catch (UnauthorizedAccessException uae)
-            {
-                Logging.LogUsefulException(uae);
-                return null;
-            }
-            catch (SecurityException se)
-            {
-                Logging.LogUsefulException(se);
-                return null;
-            }
             catch (ArgumentException ae)
             {
-                MessageBox.Show("OpenUserRegKey: " + ae.ToString());
+                MessageBox.Show("OpenRegKey: " + ae.ToString());
+                return null;
+            }
+            catch (Exception e)
+            {
+                Logging.LogUsefulException(e);
                 return null;
             }
         }
 
-        public static bool IsWinVistaOrHigher() {
+        public static bool IsWinVistaOrHigher()
+        {
             return Environment.OSVersion.Version.Major > 5;
         }
 
@@ -249,5 +242,35 @@ namespace Shadowsocks.Util
         [return: MarshalAs(UnmanagedType.Bool)]
         private static extern bool SetProcessWorkingSetSize(IntPtr process,
             UIntPtr minimumWorkingSetSize, UIntPtr maximumWorkingSetSize);
+
+
+        // See: https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
+        public static bool IsSupportedRuntimeVersion()
+        {
+            /*
+             * +-----------------------------------------------------------------+----------------------------+
+             * | Version                                                         | Value of the Release DWORD |
+             * +-----------------------------------------------------------------+----------------------------+
+             * | .NET Framework 4.6.2 installed on Windows 10 Anniversary Update | 394802                     |
+             * | .NET Framework 4.6.2 installed on all other Windows OS versions | 394806                     |
+             * +-----------------------------------------------------------------+----------------------------+
+             */
+            const int minSupportedRelease = 394802;
+
+            const string subkey = @"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\";
+            using (var ndpKey = OpenRegKey(subkey, false, RegistryHive.LocalMachine))
+            {
+                if (ndpKey?.GetValue("Release") != null)
+                {
+                    var releaseKey = (int)ndpKey.GetValue("Release");
+
+                    if (releaseKey >= minSupportedRelease)
+                    {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
     }
 }

shadowsocks-csharp/View/ConfigForm.cs

@@ -296,7 +296,7 @@ namespace Shadowsocks.View
         {
             int index = ServersListBox.SelectedIndex;
             Server server = _modifiedConfiguration.configs[index];
-            object item = ServersListBox.SelectedItem;
+            object item = ServersListBox.Items[index];
 
             _modifiedConfiguration.configs.Remove(server);
             _modifiedConfiguration.configs.Insert(index + step, server);

shadowsocks-csharp/shadowsocks-csharp.csproj

@@ -190,6 +190,7 @@
     <Compile Include="Util\SystemProxy\INTERNET_PER_CONN_OPTION.cs" />
     <Compile Include="Util\SystemProxy\INTERNET_PER_CONN_OPTION_LIST.cs" />
     <Compile Include="Util\SystemProxy\NativeMethods.cs" />
+    <Compile Include="Util\SystemProxy\RAS.cs" />
     <Compile Include="Util\SystemProxy\WinINet.cs" />
     <Compile Include="Util\Util.cs" />
     <Compile Include="View\ConfigForm.cs">