Error 0x80072F76

Value: -2147012746 | 0x80072F76 | 2147954550

What does it mean ?

ERROR_HTTP_HEADER_NOT_FOUND  
The requested header could not be located.
Value: 12150 | 0x2F76 | 0b0010111101110110
WININET_E_HEADER_NOT_FOUND  
The requested header was not found
Value: 12150 | 0x2F76 | 0b0010111101110110
ERROR_WINHTTP_HEADER_NOT_FOUND  
The requested header was not found
Value: 12150 | 0x2F76 | 0b0010111101110110

Where does it come from ?

FACILITY_WIN32  
Provides a way to handle error codes from functions in the Win32 API as an HRESULT. (Error codes in 16 - bit OLE that duplicated Win32 error codes have also been changed to FACILITY_WIN32)
Value: 7 | 0x007 | 0b00000111

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