220.127.116.11 PidLidAppointmentReplyName Property
The PidLidAppointmentReplyName property ([MS-OXPROPS] section 2.23) on the attendee's Meeting object specifies the user who last replied to the meeting request or meeting update. This property is set only for a delegator when a delegate responded. The value is equal to the PidTagMailboxOwnerName property ([MS-OXCSTOR] section 18.104.22.168) for the delegate's message store. This property has no meaning for the organizer.