MAPI Named Properties

Canonical name: PidLidPercentComplete
Description: Indicates the progress the user has made on a task. Indicates whether a time-flagged Message object is complete.
Property Set: PSETID_Task
Property ID (Name): $8102
Data Type: PT_R8
Area: Task

Remarks: The value of this property must be a number greater than or equal to 0.0 and less than or equal to 1.0, where 1.0 indicates that work is completed and 0.0 indicates that work has not begun.
For a time-flagged message object, the value of this property must be set to 1.0 if the object is flagged completed, and should be set to 0.0 otherwise.