文章作者：new.ease
信息来源：邪恶八进制信息安全团队（www.eviloctal.com）

原来我等新注册会员只能在此发表。没有什么技术含量但绝原创。

Code Language : C#

1. using System;
2. using System.Collections.Generic;
3. using System.ComponentModel;
4. using System.Data;
5. using System.Drawing;
6. using System.Text;
7. using System.Windows.Forms;
8. using Microsoft.Win32;
9. using System.Windows;
10. using System.Management;
11. using System.Net.NetworkInformation;
12. using System.ServiceProcess;
13. using System.Threading;
14.  
15. namespace test
16. {
17.   public partial class Form1 : Form
18.   {
19.     RegistryKey macRegistry ;
20.     RegistryKey parRegistry;
21.     RegistryKey ipRegistry;
22.     RegistryKey proxyRegistry;
23.     public Form1()
24.     {
25.       InitializeComponent();
26.       macRegistry = Registry.LocalMachine.OpenSubKey(\"SYSTEM\").OpenSubKey(\"CurrentControlSet\").OpenSubKey(\"Control\").OpenSubKey(\"Class\").OpenSubKey(\"{4D36E972-E325-11CE-BFC1-08002bE10318}\").OpenSubKey(\"0010\",true);//mac的注册表建所在
27.      parRegistry = Registry.LocalMachine.OpenSubKey(\"SYSTEM\").OpenSubKey(\"CurrentControlSet\").OpenSubKey(\"Services\").OpenSubKey(\"Tcpip\").OpenSubKey(\"Parameters\");//IP的注册表建所在
28.      proxyRegistry =Registry.CurrentUser.OpenSubKey(\"Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\",true);
29.      ipRegistry = parRegistry.OpenSubKey(\"Interfaces\").OpenSubKey(macRegistry.GetValue(\"NetCfgInstanceId\").ToString(),true);
30.    }
31.  
32.    private void Form1_Load(object sender, EventArgs e)
33.    {
34.      if (macRegistry.GetValue(\"NetworkAddress\") == null)
35.        label1.Text = \"默认MAC地址\";
36.      else
37.        label1.Text = macRegistry.GetValue(\"NetworkAddress\").ToString();
38.  
39.    }
40.  
41.    private bool SetNetworkAdapter(bool status)
42.    {
43.      const string discVerb = \"停用(&B)\";
44.      const string connVerb = \"启用(&A)\";
45.      const string network = \"网络连接\";
46.      const string networkConnection = \"本地连接\";
47.      string sVerb;
48.  
49.      if (status)
50.      {
51.  
52.        sVerb = connVerb;
53.      }
54.      else
55.      {
56.  
57.        sVerb = discVerb;
58.      }
59.  
60.      Shell32.Shell sh = new Shell32.Shell();
61.      Shell32.Folder folder;
62.  
63.      folder = sh.NameSpace(3);    //Shell32.ShellSpecialFolderConstants.ssfCONTROLS  
64.      try
65.      {
66.        //进入控制面板的所有选项  
67.        foreach (Shell32.FolderItem myItem in folder.Items())
68.        {
69.          //进入网络和拔号连接  
70.          if (myItem.Name == network)
71.          {
72.            Shell32.Folder fd = (Shell32.Folder)myItem.GetFolder;
73.            foreach (Shell32.FolderItem fi in fd.Items())
74.            {
75.              //找到本地连接  
76.              if (fi.Name.IndexOf(networkConnection) > -1)
77.              {
78.  
79.                //找本地连接的所有右键功能菜单  
80.                foreach (Shell32.FolderItemVerb Fib in fi.Verbs())
81.                {
82.                  if (Fib.Name == sVerb)
83.                  {
84.                    Fib.DoIt();
85.                    return true;
86.                  }
87.                }
88.              }
89.            }
90.          }
91.        }
92.      }
93.      catch (Exception e)
94.      {
95.        MessageBox.Show(e.Message);
96.        return false;
97.      }
98.      ;
99.      return false;
100.    }
101.  
102.    private void button1_Click(object sender, EventArgs e)
103.    {
104.      SetNetworkAdapter(false);
105.      macRegistry.DeleteValue(\"NetworkAddress\",false);
106.      ipRegistry.SetValue(\"IPAddress\", new string[] { \"192.168.1.0\"},RegistryValueKind.MultiString);
107.      proxyRegistry.SetValue(\"ProxyServer\", \"192.168.1.00:808\");
108.      timer1.Start();
109.    }
110.  
111.    private void button2_Click(object sender, EventArgs e)
112.    {
113.      SetNetworkAdapter(false);
114.      macRegistry.SetValue(\"NetworkAddress\", \"000000000000\");
115.      ipRegistry.SetValue(\"IPAddress\", new string[] { \"192.168.1.00\" }, RegistryValueKind.MultiString);
116.      proxyRegistry.SetValue(\"ProxyServer\", \"192.168.1.0:8080\");
117.      timer1.Start();
118.    }
119.  
120.    private void button3_Click(object sender, EventArgs e)
121.    {
122.      SetNetworkAdapter(false);
123.      macRegistry.SetValue(\"NetworkAddress\", \"000000000000\", RegistryValueKind.String);
124.      ipRegistry.SetValue(\"IPAddress\", new string[] { \"192.168.1.00\" }, RegistryValueKind.MultiString);
125.      proxyRegistry.SetValue(\"ProxyServer\", \"192.168.1.0:8080\");
126.      timer1.Start();
127.    }
128.  
129.    private void timer1_Tick(object sender, EventArgs e)
130.    {
131.      if (SetNetworkAdapter(true))
132.      {
133.        timer1.Stop();
134.      }
135.    }
136.  
137.  }
138. }

Parsed in 0.043 seconds

恩 很少在邪八看见C#同仁啊 呵呵楼主以后有空交流下！~ 不过现在工作不是写程序好多都记不住了 呵呵 C# 可是好东西

要生效的话需要重启不？如果需要的话，建议楼主再加上重启网卡的代码，更方便一点哈~

[ 本帖最后由 zerosoul 于 2008-5-22 01:30 编辑 ]

更换IP？你这个IP是内网IP吧。