获取cpu序列号 硬盘ID 网卡硬地址

using System; 
using System.Management; 
using System.IO; 
using System.Runtime.InteropServices; 
using System.Security.Cryptography; 
using System.Text; 
using Microsoft.Win32; 

namespace CHUmanager.Common 
{ 
/// <summary> 
/// register 的摘要说明。 
/// 注册软件所用到的类 
/// </summary> 
public class Register 
{ 

#region 获取cpu序列号 硬盘ID 网卡硬地址 
/// <summary> 
/// 获取cpu序列号  
/// </summary> 
/// <returns>string </returns> 
public string GetCpuInfo() 
{ 
string cpuInfo = ""; 
ManagementClass cimobject = new ManagementClass("Win32_Processor");  
ManagementObjectCollection moc = cimobject.GetInstances();  
foreach(ManagementObject mo in moc)  
{  
cpuInfo = mo.Properties["ProcessorId"].Value.ToString();  
} 
return cpuInfo.ToString(); 
} 

/// <summary> 
/// 获取硬盘ID  
/// </summary> 
/// <returns>string </returns> 
public string GetHDid() 
{ 
string HDid = "";  
ManagementClass cimobject1 = new ManagementClass("Win32_DiskDrive");  
ManagementObjectCollection moc1 = cimobject1.GetInstances();  
foreach(ManagementObject mo in moc1)  
{  
HDid = (string)mo.Properties["Model"].Value;    
} 
return HDid.ToString(); 
} 

/// <summary> 
/// 获取网卡硬件地址 
/// </summary> 
/// <returns>string </returns> 
public string GetMoAddress() 
{ 
string MoAddress = ""; 
ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");  
ManagementObjectCollection moc2 = mc.GetInstances();  
foreach(ManagementObject mo in moc2)  
{  
if((bool)mo["IPEnabled"] == true) 
MoAddress = mo["MacAddress"].ToString(); 
mo.Dispose();  
} 
return MoAddress.ToString(); 
} 
#endregion 
} 
}