Error 0x00043646

Value: 276038 | 0x00043646 | 276038

What does it mean ?

FTE_S_READONLY_CATALOG  
The catalog has been opened for read-only operations.
Value: 13894 | 0x3646 | 0b0011011001000110

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