Error 0x8019019F

Value: -2145844833 | 0x8019019F | 2149122463

What does it mean ?

HTTP_E_STATUS_UNSUPPORTED_MEDIA  
Unsupported media type (415).
Value: 415 | 0x019F | 0b0000000110011111

Where does it come from ?

FACILITY_HTTP  
HTTP support
Value: 25 | 0x019 | 0b00011001

Other Errors for FACILITY_HTTP