constant Win32::Registry::Constants::REG_LEGAL_OPTION

REG_OPTION_RESERVED[permalink][rdoc]
REG_OPTION_NON_VOLATILE
REG_OPTION_VOLATILE
REG_OPTION_CREATE_LINK
REG_OPTION_BACKUP_RESTORE
REG_OPTION_OPEN_LINK
REG_LEGAL_OPTION

[TODO]