Error 0x80190130

Value: -2145844944 | 0x80190130 | 2149122352

What does it mean ?

HTTP_E_STATUS_NOT_MODIFIED  
Not modified (304).
Value: 304 | 0x0130 | 0b0000000100110000

Where does it come from ?

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

Other Errors for FACILITY_HTTP