Error 0x00040D78

Value: 265592 | 0x00040D78 | 265592

What does it mean ?

GTHR_S_MODIFIED_PARTS  
Some parts of the document were modified, and others were not. The gatherer will refilter the entire document.
Value: 3448 | 0x0D78 | 0b0000110101111000

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

Other Errors for FACILITY_ITF