转：http://blog.csdn.net/smartsmile2012/article/details/8682295


#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 static 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 static 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 static 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

        #region 操作注册表
        /// <summary>
        /// 读取指定名称的注册表的值
        /// </summary>
        /// <param name="name">注册表值</param>
        /// <returns></returns>
        private static string GetRegistData(string name)
        {
            string registData;
            RegistryKey hkml = Registry.LocalMachine;
            RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);
            RegistryKey aimdir = software.OpenSubKey("CSharpCode", true);
            registData = aimdir.GetValue(name).ToString();
            return registData;
        }

        /// <summary>
        /// 注册表中写数据 
        /// </summary>
        /// <param name="name">注册表</param>
        /// <param name="tovalue">值</param>
        private void WTRegedit(string name, string tovalue)
        {
            RegistryKey hklm = Registry.LocalMachine;
            RegistryKey software = hklm.OpenSubKey("SOFTWARE", true);
            RegistryKey aimdir = software.CreateSubKey("CSharpCode");
            aimdir.SetValue(name, tovalue);
        }

        /// <summary>
        /// .删除注册表中指定的注册表项
        /// </summary>
        /// <param name="name">注册表</param>
        private void DeleteRegist(string name)
        {
            string[] aimnames;
            RegistryKey hkml = Registry.LocalMachine;
            RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);
            RegistryKey aimdir = software.OpenSubKey("CSharpCode", true);
            aimnames = aimdir.GetSubKeyNames();
            foreach (string aimKey in aimnames)
            {
                if (aimKey == name)
                    aimdir.DeleteSubKeyTree(name);
            }
        }

        /// <summary>
        /// 判断指定注册表项是否存在
        /// </summary>
        /// <param name="name">注册表</param>
        /// <returns></returns>
        private static bool IsRegeditExit(string name)
        {
            bool _exit = false;
            string[] subkeyNames;
            RegistryKey hkml = Registry.LocalMachine;
            RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);
            subkeyNames = software.GetSubKeyNames();
            foreach (string keyName in subkeyNames)
            {
                if (keyName == name)
                {
                    _exit = true;
                    return _exit;
                }
            }
            return _exit;
        } 
        #endregion