2.2.1.2.3 PidTagSearchFolderTag

Type: PtypInteger32

The PidTagSearchFolderTag property ([MS-OXPROPS] section 2.996) contains a 4-byte value that marks the current search folder. The value of this property does not have to be unique, but it MUST change with every update of the search folder definition message; otherwise, another client accessing the message store will not be able to determine whether the search folder has changed.

The tag of the search folder definition message MUST match the tag of the corresponding search folder container. For details about the relationship between the search folder definition message and the search folder container, see section 2.2.4.