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2.2.8 PidTagContainerClass Property

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Type: PtypString ([MS-OXCDATA] section 2.11.1)

The PidTagContainerClass property ([MS-OXPROPS] section 2.643), located on the special folder, specifies the type of Message object that the folder contains. An implementation MUST set this property to the string that specifies the correct Container class for the special folder, as specified in section 2.2.1.