2.2.1.9.1 PidLidContactLinkedGlobalAddressListEntryId Property
Type: PtypBinary ([MS-OXCDATA] section 2.11.1)
The PidLidContactLinkedGlobalAddressListEntryId property ([MS-OXPROPS] section 2.69) specifies the EntryID of the GAL contact to which the duplicate contact is linked.<6>