char subkeyname[NAME_LENGTH];
DWORD len = sizeof(subkeyname);
DWORD err = RegEnumKeyExA(key_, index, subkeyname, &len, NULL, NULL, NULL, NULL);
char subkeyname[NAME_LENGTH];
DWORD len = sizeof(subkeyname);
DWORD err = RegEnumKeyExA(key_, index, subkeyname, &len, NULL, NULL, NULL, NULL);