hello, For some mysterious reasons, you can not compile the App from IB. Instead you must do it from the shell. All works fine then. An exec is given within the pack, for those who are not interested by reading sources. This App is describe in the BuzzNug, so please refer to it if you want some info. ortherwise you can mail me to : phil@cnam.cnam.fr Thanx, and have fun with it. Phil