Error 0x80045049

Value: -2147200951 | 0x80045049 | 2147766345

What does it mean ?

SPERR_WORDFORMAT_ERROR  
Incorrect word format, probably due to incorrect pronunciation string.
Value: 20553 | 0x5049 | 0b0101000001001001

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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