C#.NET获取拨号连接的宽带连接方法

class SinASDL{  //ASDL在注册表中的存放位置，这个是针对WinXP的，  //不知道Win7是否是这个，待验证  private static String _adlskeys = @"RemoteAccess/Profile";  public static String adlskeys  {    get    {      return _adlskeys;    }  }  /// <summary>  /// 获取本机的拨号名称，也就是本机上所有的拨号  /// </summary>  /// <returns></returns>  public static String[] GetASDLNames()  {    RegistryKey RegKey = Registry.CurrentUser.OpenSubKey(adlskeys);    if (RegKey != null)      return RegKey.GetSubKeyNames();    else      return null;  }  private String _asdlname = null;  private ProcessWindowStyle _windowstyle = ProcessWindowStyle.Hidden;  /// <summary>  /// 实例化一个ASDL连接  /// </summary>  /// <param name="asdlname">ASDL名称，如“宽带连接”</param>  /// <param name="username">用户名</param>  /// <param name="password">密码</param>  /// <param name="windowstyle">窗口显示方式，默认为因此拨号过程</param>  public SinASDL(String asdlname, String username = null, String password = null, ProcessWindowStyle windowstyle = ProcessWindowStyle.Hidden)  {    this.ASDLName = asdlname;    this.Username = username;    this.Password = password;    this.WindowStyle = windowstyle;  }  /// <summary>  /// 拨号名称  /// </summary>  public String ASDLName  {    get    {      return this._asdlname;    }    set    {      this._asdlname = value;    }  }  /// <summary>  /// 拨号进程的窗口方式  /// </summary>  public ProcessWindowStyle WindowStyle  {    get    {      return this._windowstyle;    }    set    {      this._windowstyle = value;    }  }  private String _username = null;  //用户名  private String _password = null;  //密码  /// <summary>  /// 用户名  /// </summary>  public String Username  {    get    {      return this._username;    }    set    {      this._username = value;    }  }  /// <summary>  /// 密码  /// </summary>  public String Password  {    get    {      return this._password;    }    set    {      this._password = value;    }  }  /// <summary>  /// 开始拨号  /// </summary>  /// <returns>返回拨号进程的返回值</returns>  public int Connect()  {    Process pro = new Process();    pro.StartInfo.FileName = "rasdial.exe";    pro.StartInfo.Arguments = this.ASDLName + " " + this.Username + " " + this.Password;    pro.StartInfo.WindowStyle = this.WindowStyle;    pro.Start();    pro.WaitForExit();    return pro.ExitCode;  }  /// <summary>  /// 端口连接  /// </summary>  /// <returns></returns>  public int Disconnect()  {    Process pro = new Process();    pro.StartInfo.FileName = "rasdial.exe";    pro.StartInfo.Arguments = this.ASDLName + " /DISCONNECT";    pro.StartInfo.WindowStyle = this.WindowStyle;    pro.Start();    pro.WaitForExit();    return pro.ExitCode;  }}

//SinASDL asdl = new SinASDL("宽带连接", "08793312221", "123456");//宽带连接//使用枚举到的第一个进行拨号SinASDL asdl = new SinASDL(SinASDL.GetASDLNames()[0], "08793312221", "123456", System.Diagnostics.ProcessWindowStyle.Normal);if (asdl.Connect() == 0){  MessageBox.Show("Success");}else{  MessageBox.Show("Fail");}