[DllImport("advapi32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
        static extern int RegQueryInfoKey(UIntPtr hKey, [Out()]StringBuilder lpClass, ref uint lpcchClass,
           IntPtr lpReserved, out uint lpcSubkey, out uint lpcchMaxSubkeyLen,
           out uint lpcchMaxClassLen, out uint lpcValues, out uint lpcchMaxValueNameLen,
           out uint lpcbMaxValueLen, IntPtr lpSecurityDescriptor, IntPtr lpftLastWriteTime);