What does it mean in SOAP handler below code?

What does it mean in SOAP handler below code?

Delphi XE:
            if not HttpEndRequest(Request, nil, 0, 0) then
                RetVal := HandleWinInetError(GetLastError, Request);

Delphi XE7:
            HttpEndRequest(Request, nil, 0, 0);
            RetVal := HandleWinInetError(GetLastError, Request, True);