Hi Markus,

>PMFJI, but I think, I know your problem. Have a look at the RThreshold >property. As long as this is set to 0 and you haven't any other type of >handshaking/signalisation on the Comm port, you'll see simply no firing of the >OnComm event I'd say.
>Once you set this to let's say 1 or any other number, onComm will fire, when >the number of chars in the buffer reaches this threshold. Have also a look at >the NullDiscard, that stops CHR(0) from beeing reported.

Setting of RTreshold=1 solve the problem.
Thanks to all.
Pavel