public void sendContentReceipt(int seq, string consumer, string messageId)
{
#if !SILVERLIGHT
send_sendContentReceipt(seq, consumer, messageId);
recv_sendContentReceipt();
#else
var asyncResult = Begin_sendContentReceipt(null, null, seq, consumer, messageId);
End_sendContentReceipt(asyncResult);
#endif
}
#if SILVERLIGHT