1     /// <summary>
  2     /// 注册表
  3     /// </summary>
  4     public class RegistryKey64
  5     {
  6         #region 静态
  7         static IntPtr GetHiveHandle(RegistryHive hive)
  8         {
  9             IntPtr preexistingHandle = IntPtr.Zero;
 10 
 11             IntPtr HKEY_CLASSES_ROOT = new IntPtr(-2147483648);
 12             IntPtr HKEY_CURRENT_USER = new IntPtr(-2147483647);
 13             IntPtr HKEY_LOCAL_MACHINE = new IntPtr(-2147483646);
 14             IntPtr HKEY_USERS = new IntPtr(-2147483645);
 15             IntPtr HKEY_PERFORMANCE_DATA = new IntPtr(-2147483644);
 16             IntPtr HKEY_CURRENT_CONFIG = new IntPtr(-2147483643);
 17             IntPtr HKEY_DYN_DATA = new IntPtr(-2147483642);
 18             switch (hive)
 19             {
 20                 case RegistryHive.ClassesRoot: preexistingHandle = HKEY_CLASSES_ROOT; break;
 21                 case RegistryHive.CurrentUser: preexistingHandle = HKEY_CURRENT_USER; break;
 22                 case RegistryHive.LocalMachine: preexistingHandle = HKEY_LOCAL_MACHINE; break;
 23                 case RegistryHive.Users: preexistingHandle = HKEY_USERS; break;
 24                 case RegistryHive.PerformanceData: preexistingHandle = HKEY_PERFORMANCE_DATA; break;
 25                 case RegistryHive.CurrentConfig: preexistingHandle = HKEY_CURRENT_CONFIG; break;
 26                 case RegistryHive.DynData: preexistingHandle = HKEY_DYN_DATA; break;
 27             }
 28             return preexistingHandle;
 29         }
 30         #endregion
 31 
 32         #region 构造
 33         public RegistryKey64(RegistryHive hive, RegistryView view)
 34         {
 35             this.View = view;
 36             this.Hive = hive;
 37             this.SubKey = "";
 38             rootHandle = new SafeRegistryHandle(GetHiveHandle(hive), true);//获得根节点的安全句柄
 39         }
 40         public RegistryKey64(RegistryHive hive)
 41         {
 42             this.View = Environment.Is64BitOperatingSystem?RegistryView.Registry64: RegistryView.Registry32;
 43             this.Hive = hive;
 44             this.SubKey = "";
 45             rootHandle = new SafeRegistryHandle(GetHiveHandle(hive), true);//获得根节点的安全句柄
 46         }
 47         #endregion
 48 
 49         #region 变量
 50         SafeRegistryHandle rootHandle = null;//*节点的句柄
 51         RegistryKey subKeyHandle = null;//当前子项的句柄
 52         
 53         #endregion
 54 
 55         #region 属性
 56         /// <summary>
 57         /// 当前所在路径
 58         /// </summary>
 59         public string SubKey { get; private set; }
 60         /// <summary>
 61         /// *路径
 62         /// </summary>
 63         public RegistryHive Hive { get; private set; }
 64         /// <summary>
 65         /// 视图模式
 66         /// </summary>
 67         public RegistryView View { get;private set; }
 68         /// <summary>
 69         /// 内部系统注册表信息
 70         /// </summary>
 71         public RegistryKey RegistryKey { get { return this.subKeyHandle ?? RegistryKey.FromHandle(this.rootHandle, this.View); } }
 72         #endregion
 73         /// <summary>
 74         /// 用于32位程序访问64位注册表
 75         /// </summary>
 76         /// <param name="valueName">项名称</param>
 77         /// <returns>值</returns>
 78         public object GetValue(string valueName)
 79         {
 80             return this.subKeyHandle.GetValue(valueName);//获得键下指定项的值
 81         }
 82         /// <summary>
 83         /// 打开子项
 84         /// </summary>
 85         /// <param name="subName">子项名称</param>
 86         public void OpenKey(string subName)
 87         {
 88             RegistryKey key = this.RegistryKey.OpenSubKey(subName);
 89             if(key==null)
 90                 key=this.RegistryKey.CreateSubKey(subName);
 91             this.subKeyHandle = key;
 92             this.SubKey += "\\" + subName;
 93         }
 94         /// <summary>
 95         /// 用于32位的程序设置64位的注册表
 96         /// </summary>
 97         /// <param name="valueName">项名称</param>
 98         /// <param name="value">值</param>
 99         /// <param name="kind">值类型</param>
100         public void SetValue(string valueName, object value, RegistryValueKind kind)
101         {
102             this.subKeyHandle.SetValue(valueName, value, kind);
103         }
104     }

1             RegistryKey64 key = new DTPM.Util.Configs.RegistryKey64(RegistryHive.LocalMachine);
2             key.OpenKey(@"SOFTWARE\XXX\XXX");
3             string path = key.GetValue("ConfigPath") as string;
4             key.RegistryKey.Close();