Error 0xC00CEF04

Value: -1072894204 | 0xC00CEF04 | 3222073092

What does it mean ?

WR_E_DUPLICATEATTRIBUTE  
XmlLite: writer: duplicate attribute
Value: 61188 | 0xEF04 | 0b1110111100000100

Where does it come from ?

FACILITY_INTERNET  
Wininet related (Internet APIs)
Value: 12 | 0x00C | 0b00001100

Other Errors for FACILITY_INTERNET