WebcitAddUrlHandler(HKEY("download_file"), download_file, NEED_URL);
WebcitAddUrlHandler(HKEY("delete_file"), delete_file, NEED_URL);
WebcitAddUrlHandler(HKEY("upload_file"), upload_file, 0);
WebcitAddUrlHandler(HKEY("download_file"), download_file, NEED_URL);
WebcitAddUrlHandler(HKEY("delete_file"), delete_file, NEED_URL);
WebcitAddUrlHandler(HKEY("upload_file"), upload_file, 0);