2.2.1.56 Deprecated Properties
The properties defined in sections 2.2.1.56.1 through 2.2.1.56.9 are deprecated. If nonzero or non-NULL, clients SHOULD set their value to zero or an empty string (as appropriate).<18> If the PidLidConferencingCheck property (section 2.2.1.56.2) is set to FALSE, all the properties in this section are ignored. These properties are to be set only on Calendar objects and meeting-related objects.