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