this.backend = backend;
window =ws;
this.to = to;
sid = id;
setPriority(NORM_PRIORITY);
backend.send(new InfoQuery(to,"set","ibb" + backend.getIdentifier(), new IBBExtension(sid,BUF_SIZE)),new IQResultListener()
{
public void iqResult(InfoQuery iq)
{
if(iq.getType().equals("result"))
{