使用Eltima公司的VSort.dll COM控件创建虚拟串口速度太慢了。平均创建一个串口需要2s。由于客户需要多个虚拟串口（10个以上）。那需要的时间也太长了吧。哪位用过VSPOT，帮忙指导下。下面是代码：

  public partial class Form1 : Form
    {
        private Stopwatch stopwatch = new Stopwatch();
        private VSPortAxClass[] vports = new VSPortAxClass[10];   //10个虚拟串口
        IntPtr handle = IntPtr.Zero;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //添加所有串口
            ComListcomboBox.Items.AddRange(System.IO.Ports.SerialPort.GetPortNames());
            //新建
            for (int i = 0; i < 10; i++)
            {
                vports[i] = new VSPortAxClass();
                vports[i].DeleteOnExit = false; 
            }
        }
        //创建虚拟虚拟串口
        private void button1_Click(object sender, EventArgs e)
        {
            int i=50;
            stopwatch.Restart();
            foreach (var vp in vports)
            {
                if (!ComListcomboBox.Items.Contains(string.Format("COM{0}", i)))
                {
                    if (!vp.CreatePort(string.Format("COM{0}", i++)))
                    {
                        MessageBox.Show(string.Format("COM{0}创建不成功", i - 1));
                        break;
                    }
                }
                else
                {
                    if ( !vp.Attach(string.Format("COM{0}", i++)))
                    {
                        MessageBox.Show(string.Format("COM{0}适配不成功", i - 1));
                        break;
                    }
                }
            }
            stopwatch.Stop();
            MessageBox.Show(string.Format("共消耗时间：{0}MS", stopwatch.ElapsedMilliseconds));        
            ComListcomboBox.Items.Clear();
            ComListcomboBox.Items.AddRange(SerialPort.GetPortNames());
        }
       //删除串口
        private void button2_Click(object sender, EventArgs e)
        {
            int i = 50;
            stopwatch.Restart();
            foreach (var vp in vports)
            {
                if (!vp.Delete())
                {
                    MessageBox.Show(string.Format("COM{0}删除不成功", i++));
                    break;
                }
            }
            stopwatch.Stop();
            MessageBox.Show(string.Format("共消耗时间：{0}MS", stopwatch.ElapsedMilliseconds));
            ComListcomboBox.Items.Clear();
            ComListcomboBox.Items.AddRange(SerialPort.GetPortNames());
        }
}