Error 0x800416A2

Value: -2147215710 | 0x800416A2 | 2147751586

What does it mean ?

SEARCH_E_NOREGION  
Retrival of hits as filter regions is not supported (by filter passed into Init).
Value: 5794 | 0x16A2 | 0b0001011010100010

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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