Hello again! :-) I decided to try out the libnet routines on my PowerBook 165c which (for some strange reason) I can not upgrade from System 7.1. Anyway, the libnet routines work wonderfully well under 7.5.3 on my PowerPC but they complain about the Socket routines not being 1.3 on the PowerBook. Any idea what extension I need in order to get them to work? Thanks! :-)