2.2.6.6 PidLidAppointmentMessageClass Property

 Type: PtypString ([MS-OXCDATA] section 2.11.1.2)

The PidLidAppointmentMessageClass property ([MS-OXPROPS] section 2.16) indicates the value of the PidTagMessageClass property ([MS-OXCMSG] section 2.2.1.3) of the Meeting object that is to be generated from the Meeting Request object. The value of the PidLidAppointmentMessageClass property MUST either be "IPM.Appointment" or be prefixed with "IPM.Appointment.". This property is not required.