用系统注册表找出安装在Windows NT /2000/XP系统中的网络设备，并显示每个设备的ip信息

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Win32;

namespace CardGrab
...{
    class Program
    ...{
        static void Main(string[] args)
        ...{
            RegistryKey start = Registry.LocalMachine;
            RegistryKey cardServiceName, networkKey;
            string networkcardKey = "SoftWare/Microsoft/Windows NT/CurrentVersion/NetworkCards";
            string serviceKey = "System/CurrentControlSet/Services/";
            string networkcardKeyName, deviceName;
            string deviceServiceName, serviceName;
            RegistryKey serviceNames = start.OpenSubKey(networkcardKey);
            if (serviceNames == null)
            ...{
                Console.WriteLine("Bad registry key");
                return;
            }
            string[] networkCards = serviceNames.GetSubKeyNames();
            serviceNames.Close();
            foreach (string keyName in networkCards)
            ...{
                networkcardKeyName = networkcardKey + "/" + keyName;
                cardServiceName = start.OpenSubKey(networkcardKeyName);
                if (cardServiceName == null)
                ...{
                    Console.WriteLine("Bad registry key {0}", networkcardKeyName);
                    return;
                }
                deviceServiceName = (string)cardServiceName.GetValue("ServiceName");
                deviceName = (string)cardServiceName.GetValue("Description");
                Console.WriteLine(" NetWork card:{0}", deviceName);
                serviceName = serviceKey + deviceServiceName + "/Parameters/Tcpip";
                networkKey = start.OpenSubKey(serviceName);
                if (networkKey == null)
                ...{
                    Console.WriteLine("No IP configuration set");
                }
                else
                ...{
                    string[] ipaddresses = (string[])networkKey.GetValue("IPAddress");
                    string[] defaltGateways = (string[])networkKey.GetValue("DefaultGateway");
                    string[] subnetmasks = (string[])networkKey.GetValue("SubnetMask");
                    foreach (string ipaddress in ipaddresses)
                    ...{
                        Console.WriteLine("   IP Address:{0}", ipaddress);
                    }
                    foreach (string subnetmask in subnetmasks)
                    ...{
                        Console.WriteLine("   Subnet Mask:{0}", subnetmask);
                    }
                    foreach (string defaltGateway in defaltGateways)
                    ...{
                        Console.WriteLine("   Getway:{0}", defaltGateway);
                    }
                    networkKey.Close();
                }
            }
            start.Close();
            Console.Read();
        }
    }
}