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2.2.1.1 PidTagInstID

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Data type: PtypInteger64 ([MS-OXCDATA] section 2.11.1)

The PidTagInstID property ([MS-OXPROPS] section 2.746) is an identifier for all instances of a row in the table. When a RopGetCollapseState ROP request ([MS-OXCROPS] section 2.2.5.18) is sent, the client passes this property value in the RowId field, as specified in [MS-OXCROPS] section 2.2.5.18.1, to specify a cursor to store. When the PidTagInstID property is included in the column set, the server sets the property to the same value for each row that is an instance of the same underlying data.