Indicates whether or not invitations have been sent for the meeting that this meeting represents.
Long ID (LID):
A value of FALSE, or the absence of this property, indicates that a meeting request has never been sent. A value of TRUE indicates that a meeting request has been sent. Once this value is set to TRUE on a meeting, it must not be changed.
Provides property set definitions and references to related Exchange Server protocol specifications.
Specifies the properties and operations for appointment, meeting request, and response messages.
Provides data type definitions.