220.127.116.11.24 PidLidTaskAssigner Property
Type: PtypString ([MS-OXCDATA] section 2.11.1)
The PidLidTaskAssigner property ([MS-OXPROPS] section 2.308) specifies the name of the user that last assigned the task. If the task has not been assigned, this property is left unset.
When the client adds or removes a task assigner from the stack of task assigners listed in the PidLidTaskAssigners property (section 18.104.22.168.16), this property is set to the added or removed task assigner.