static IntPtr GetHiveHandle(RegistryHive hive){IntPtr preexistingHandle = IntPtr.Zero;IntPtr HKEY_CLASSES_ROOT = new IntPtr(-2147483648);IntPtr HKEY_CURRENT_USER = new IntPtr(-2147483647);IntPtr HKEY_LOCAL_MACHINE = new IntPtr(-2147483646);IntPtr HKEY_USERS = new IntPtr(-2147483645);IntPtr HKEY_PERFORMANCE_DATA = new IntPtr(-2147483644);IntPtr HKEY_CURRENT_CONFIG = new IntPtr(-2147483643);IntPtr HKEY_DYN_DATA = new IntPtr(-2147483642);switch (hive){case RegistryHive.ClassesRoot: preexistingHandle = HKEY_CLASSES_ROOT; break;case RegistryHive.CurrentUser: preexistingHandle = HKEY_CURRENT_USER; break;case RegistryHive.LocalMachine: preexistingHandle = HKEY_LOCAL_MACHINE; break;case RegistryHive.Users: preexistingHandle = HKEY_USERS; break;case RegistryHive.PerformanceData: preexistingHandle = HKEY_PERFORMANCE_DATA; break;case RegistryHive.CurrentConfig: preexistingHandle = HKEY_CURRENT_CONFIG; break;case RegistryHive.DynData: preexistingHandle = HKEY_DYN_DATA; break;}return preexistingHandle;}/// <summary>/// 用于32位程序访问64位注册表/// </summary>/// <param name="hive">根级别的名称</param>/// <param name="keyName">不包括根级别的名称</param>/// <param name="valueName">项名称</param>/// <param name="view">注册表视图</param>/// <returns>值</returns>static object GetValueWithRegView(RegistryHive hive, string keyName, string valueName, RegistryView view){SafeRegistryHandle handle = new SafeRegistryHandle(GetHiveHandle(hive), true);//获得根节点的安全句柄
RegistryKey subkey = RegistryKey.FromHandle(handle, view).OpenSubKey(keyName);//获得要访问的键
RegistryKey key = RegistryKey.FromHandle(subkey.Handle, view);//根据键的句柄和视图获得要访问的键return key.GetValue(valueName);//获得键下指定项的值
        }/// <summary>/// 用于32位的程序设置64位的注册表/// </summary>/// <param name="hive">根级别的名称</param>/// <param name="keyName">不包括根级别的名称</param>/// <param name="valueName">项名称</param>/// <param name="value">值</param>/// <param name="kind">值类型</param>/// <param name="view">注册表视图</param>static void SetValueWithRegView(RegistryHive hive, string keyName, string valueName, object value, RegistryValueKind kind, RegistryView view){SafeRegistryHandle handle = new SafeRegistryHandle(GetHiveHandle(hive), true);RegistryKey subkey = RegistryKey.FromHandle(handle, view).OpenSubKey(keyName, true);//需要写的权限,这里的true是关键。0227更新
RegistryKey key = RegistryKey.FromHandle(subkey.Handle, view);key.SetValue(valueName, value, kind);}