using Microsoft.Win32;
    using System.Diagnostics;
    private void Access_Registry()
    {
         // 在HKEY_LOCAL_MACHINESoftware下建立一新鍵，起名為MCBInc
            RegistryKey key = Registry.LocalMachine.OpenSubKey("Software", true);
         // 增加一個子鍵
            RegistryKey newkey = key.CreateSubKey("MCBInc");

    // 設定此子鍵的值
            newkey.SetValue("MCBInc", "NET Developer");

  // 從登錄檔的其他地方獲取資料

  // 找出你的CPU
            RegistryKey pRegKey = Registry.LocalMachine;
            pRegKey = pRegKey.OpenSubKey("HARDWAREDESCRIPTIONSystemCentralProcessor");
            Object val = pRegKey.GetValue("VendorIdentifier");
            Debug.WriteLine("The central processor of this machine is:"+ val);
         // 刪除鍵值
            RegistryKey delKey = Registry.LocalMachine.OpenSubKey("Software", true);
            delKey.DeleteSubKey("MCBInc");
    }