c# 软件注册功能实现有关问题

c# 软件注册功能实现问题？
之前实验了几个注册的功能

发现没办法限制软件在多台机器上安装

读了硬盘的号，竟然生成有重复的机器码

所以想改成利用网卡注册

我是新手，对这方面不太了解

希望告诉我用哪个类实现？有源代码是最好的，谢谢！

[解决办法]
获取网卡信息：
C# code
    public string GetNetCardMacAddress()        {                ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");           ManagementObjectCollection moc = mc.GetInstances();            string str = "";            foreach (ManagementObject mo in moc)            {                if ((bool)mo["IPEnabled"] == true)                    str = mo["MacAddress"].ToString();            }            return str;        }
[解决办法]
网卡注册也可能重复
通过硬盘序列号，加密生成用户号
否则使用序列号，在线注册

[解决办法]
这是一本书上的一个网卡注册的完整例子，你可以看看

C# codeusing System; 
 using System.Collections.Generic; 
 using System.ComponentModel; 
 using System.Data; 
 using System.Drawing; 
 using System.Text; 
 using System.Windows.Forms; 
 using System.Management; 
 using Microsoft.Win32; 
 namespace Ex16_09 
 { 
   public partial class Form1 : Form 
   { 
     public Form1() 
     { 
       InitializeComponent(); 
     } 
     string[] strLanCode = new string[12];// 网卡信息存储到 
     string[] strkey ={ "Q", "W", "7", "E", "D", "F", "2", "G", "R", "T", "Y", "8", "P", "N", "B", "V", "C", "X", "Z", "0", "9", "I", "8", "6", "U", "O", "P", "M", "5", "4", "3", "1", "A", "S", "H", "J", "K", "L" }; 
     //生成注册码 
     public int intRand = 0;//判断随机生成次数 
     private void button1_Click(object sender, EventArgs e) 
     { 
       //把网卡信息转换成字符串 
       string strCode = GetNetCardMacAddress();//调用函数获取网卡信息 
       strCode = strCode.Substring(0, 2) + strCode.Substring(3, 2) + strCode.Substring(6, 2) + strCode.Substring(9, 2) + strCode.Substring(12, 2) +strCode.Substring(15, 2); 
       string strb = strCode.Substring(0, 4) + strCode.Substring(4, 4) + strCode.Substring(8, 4);//把网卡信息存储到 
       for (int i = 0; i  &lt; strLanCode.Length; i++)//把网卡信息存入数组 
       { 
         strLanCode[i] = strb.Substring(i, 1); 
       } 
       Random ra = new Random(); 
       switch (intRand)//随机生成注册码的顺序 
       { 
         case 0: 
           label5.Text = strCode.Substring(0, 4) + "-" + strCode.Substring(4, 4) + "-" + strCode.Substring(8, 4) + "-" + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString(); 
           intRand = 1; 
           break; 
         case 1: 
           label5.Text = strCode.Substring(0, 4) + "-" + strCode.Substring(4, 4) + "-" + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + "-" + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString();  
 
           intRand = 2; 
           break; 
         case 2: 
           label5.Text = strCode.Substring(0, 4) + "-" + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + "-" + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + "-" + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString(); 
           intRand = 3; 
           break; 
         case 3: 
           label5.Text = strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + "-" + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + "-" + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + strLanCode[ra.Next(0, 11)] + "-" + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString() + strkey[ra.Next(0, 37)].ToString(); 
           intRand = 0; 
           break; 
       }// 
       
     } 
  
     private void Form1_Load(object sender, EventArgs e) 
     { 
       label2.Text = Environment.MachineName.ToString();//得到计算机名 
       label4.Text = GetNetCardMacAddress();//得到网卡信息 
  
     } 
     //获得网卡信息函数 
     public string GetNetCardMacAddress() 
     {  
  
      ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration"); 
      ManagementObjectCollection moc = mc.GetInstances(); 
       string str = ""; 
       foreach (ManagementObject mo in moc) 
       { 
         if ((bool)mo["IPEnabled"] == true) 
           str = mo["MacAddress"].ToString(); 
       } 
       return str; 
     } 
     //注册 
     private void button2_Click(object sender, EventArgs e) 
     { 
       if (label5.Text == "") 
       { MessageBox.Show("请生成注册码"); } 
       else 
       { 
         string strNameKey = textBox1.Text.TrimEnd() + textBox2.Text.TrimEnd() + textBox3.Text.TrimEnd() + textBox4.Text.TrimEnd(); 
         string strNumber = label5.Text.Substring(0, 4) + label5.Text.Substring(5, 4) + label5.Text.Substring(10, 4) + label5.Text.Substring(15, 4); 
         if (strNameKey == strNumber) 
         { 
          // Microsoft.Win32.RegistryKey retkey1 = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("software").OpenSubKey("ZHY").OpenSubKey("ZHY.INI", true); 
           Microsoft.Win32.RegistryKey retkey1 = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("software", true).CreateSubKey("ZHY").CreateSubKey("ZHY.INI"); 
           foreach (string strName in retkey1.GetSubKeyNames())//判断注册码是否过期 
           { 
             if (strName == strNameKey) 
             { 
               MessageBox.Show("此注册码已经过期");  
 
               return; 
             } 
           }//开始注册信息 
           Microsoft.Win32.RegistryKey retkey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("software",true).CreateSubKey("ZHY").CreateSubKey("ZHY.INI").CreateSubKey(strNumber.TrimEnd()); 
           retkey.SetValue("UserName", "注册人"); 
           MessageBox.Show("注册成功!", "提示"); 
           Application.Exit(); 
         } 
         else 
         { MessageBox.Show("注册码输入错误"); } 
       } 
   
     } 
  
     private void button3_Click(object sender, EventArgs e) 
     { 
       Application.Exit(); 
     } 
  
     private void textBox1_KeyUp(object sender, KeyEventArgs e) 
     { 
       if (textBox1.Text.Length == 4) 
       { textBox2.Focus(); 
       textBox2.SelectAll(); 
       e.Handled = true; 
       } 
     } 
  
     private void textBox2_KeyUp(object sender, KeyEventArgs e) 
     { 
       if (textBox2.Text.Length == 4) 
       { 
         textBox3.Focus(); 
         textBox3.SelectAll(); 
         e.Handled = true; 
       } 
     } 
  
     private void textBox3_KeyUp(object sender, KeyEventArgs e) 
     { 
       if (textBox3.Text.Length == 4) 
       { 
         textBox4.Focus(); 
         textBox4.SelectAll(); 
         e.Handled = true; 
       } 
  
     } 
  
    
   } 
 }
c# 软件注册功能实现有关问题

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