May be one or more of the following: 0x00000020 - UnpinForUser. Unpin for the logged-on user. 0x00000040 - UnpinForUser_Policy. ...

May be one or more of the following: 

0x00000020 - UnpinForUser.  Unpin for the logged-on user. 
0x00000040 - UnpinForUser_Policy. Unpin for the logged-on user as if unpinned by Group Policy. 
0x00000080 - UnpinForAll.  Unpin for all users. 
0x00000200 - LowPriority.  Perform operation at low CPU and I/O priority whenever possible. 
0x00000400 - AsyncProgress.  Use asynchronous progress reporting.  This may drop some \"success\" notifications for performance. 
0x00000800 - Interactive.  OK to interact with user if necessary (i.e. alternate credential requests). 
0x00001000 - Console.  All interaction directed to console. 
0x00010000 - Background.  Minimize sharing violations.