220.127.116.11 PidLidAllAttendeesString Property
Type: PtypString ([MS-OXCDATA] section 18.104.22.168)
The PidLidAllAttendeesString property ([MS-OXPROPS] section 2.5) specifies a list of all the attendees except for the organizer, including Resource objects and unsendable attendees. The value for each attendee is the PidTagDisplayName property ([MS-OXCFOLD] section 22.214.171.124.2.5) of the attendee's Address Book object. Separate entries are delimited by a semicolon followed by a space. This property is not required.