Error 0x8004173D

Value: -2147215555 | 0x8004173D | 2147751741

What does it mean ?

FILTER_E_OFFLINE  
The document is offline.
Value: 5949 | 0x173D | 0b0001011100111101

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

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