import mx.remoting.Connection;

var con:Connection = new Connection();
con.connect("http://127.0.0.1:8500/flashservices/gatewa");
con.onStatus = function (status) {
    trace ("３．FlashRemotingとの接続エラー");
};
testService = con.getService("http://127.0.0.1:8500",this);
testService.test();