enum sys.RegStdKey

enum RegStdKey {
    ClassesRoot              = 0x80000000,
    CurrentUser              = 0x80000001,
    LocalMachine             = 0x80000002,
    Users                    = 0x80000003,
    PerformanceData          = 0x80000004,
    PerformanceText          = 0x80000050,
    PerformanceNlstext       = 0x80000060,
    CurrentConfig            = 0x80000005,
    DynData                  = 0x80000006,
    CurrentUserLocalSettings = 0x80000007,
};