Error 0x8004505F

Value: -2147200929 | 0x8004505F | 2147766367

What does it mean ?

The method called is not supported for the shared recognizer. For example, ISpRecognizer::GetInputStream().
Value: 20575 | 0x505F | 0b0101000001011111

Where does it come from ?

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

Other Errors for FACILITY_ITF