Error 0xC0041821

Value: -1073473503 | 0xC0041821 | 3221493793

What does it mean ?

CI_INCORRECT_VERSION  
The content index data on disk is for the wrong version.
Value: 6177 | 0x1821 | 0b0001100000100001

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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