RemoteObject in Flash CS4

I had a hard time to get this thing working, and still no success.

Using RemoteObject in Flex is no problem. For instance, in Flex (without using a services-config.xml) something like this:

myRemote.endpoint = “http://localhost/”;
myRemote.source = “MyService”;
myRemote.getData.addEventListener(ResultEvent.RESULT, getDataListener);
myRemote.saveData.addEventListener(ResultEvent.RESULT, saveDataListener);

is working.

Doing the same in Flash CS4, with the correct .swc from the Flex SDK in the Library path
and importing the mx.rpc.remoting.mxml.RemoteObject class compiles without any error.

But i do get no data connection:

[RPC Fault faultString="" faultCode=“Client.Error.MessageSend” faultDetail=“Channel.Connect.Failed error null url: ‘null’”]

So what goes wrong here? Can someone tell me if the mxml.RemoteObject is working in Flash CS4 anyway and at all?

(I’m using the 3.4.0 sdk)

Thanks.