Error 0x00040170

Value: 262512 | 0x00040170 | 262512

What does it mean ?

CACHE_S_FORMATETC_NOTSUPPORTED  
FORMATETC not supported
Value: 368 | 0x0170 | 0b0000000101110000

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

StackOverflow

Other Errors for FACILITY_ITF