Error 0x80004021

Value: -2147467231 | 0x80004021 | 2147500065

What does it mean ?

CO_E_NOT_SUPPORTED  
The operation attempted is not supported.
Value: 16417 | 0x4021 | 0b0100000000100001

Where does it come from ?

FACILITY_NULL  
The default facility code
Value: 0 | 0x000 | 0b00000000

StackOverflow

Other Errors for FACILITY_NULL