Error 0x000400FF

Value: 262399 | 0x000400FF | 262399

What does it mean ?

OLE_S_LAST  
Value: 255 | 0x00FF | 0b0000000011111111

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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