Put(ZoneHash, HKEY("UTC"), ZName, HFreeStrBuf);
zones = icaltimezone_get_builtin_timezones();
for (z = 0; z < zones->num_elements; ++z) {
Put(ZoneHash, HKEY("UTC"), ZName, HFreeStrBuf);
zones = icaltimezone_get_builtin_timezones();
for (z = 0; z < zones->num_elements; ++z) {