vs2003 下获取mac网卡地址函数

//这里唯一注意下的就是Management在vs2003下不是默认的，需要引用一下System.Management.dll就ok了。
using System.Net;

using System.Management;
//获取mac地址

  public string GetCustomerMac() 

  { 

   string macInfo = "";

   string s="",mac="";                          string hostInfo = Dns.GetHostName();                          
   System.Net.IPAddress[] addressList = Dns.GetHostByName(Dns.GetHostName()).AddressList;                      
   for (int i = 0; i < addressList.Length; i ++)                 
   {              
    s += addressList[i].ToString();                                   }                                            ManagementClass mc;          
   mc=new ManagementClass("Win32_NetworkAdapterConfiguration");

   ManagementObjectCollection moc=mc.GetInstances();                          foreach(ManagementObject mo in moc)                     
   {          
    if(mo["IPEnabled"].ToString()=="True")                     

     mac=mo["MacAddress"].ToString();          

   }                     macInfo = mac;

   return macInfo;

  }