Error 0xC00CEF03

Value: -1072894205 | 0xC00CEF03 | 3222073091

What does it mean ?

WR_E_NSPREFIXWITHEMPTYNSURI  
XmlLite: writer: It is not allowed to declare a namespace prefix with empty URI (for example xmlns:p=””).
Value: 61187 | 0xEF03 | 0b1110111100000011

Where does it come from ?

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

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