RegisterHeaderHandler(HKEY("CONTENT-LENGTH"), Header_HandleContentLength);
RegisterHeaderHandler(HKEY("CONTENT-TYPE"), Header_HandleContentType);
RegisterHeaderHandler(HKEY("USER-AGENT"), Header_HandleUserAgent);
RegisterHeaderHandler(HKEY("CONTENT-LENGTH"), Header_HandleContentLength);
RegisterHeaderHandler(HKEY("CONTENT-TYPE"), Header_HandleContentType);
RegisterHeaderHandler(HKEY("USER-AGENT"), Header_HandleUserAgent);