I think I can clarify what he/she means. It looks like he/she wants to access a com port attached to one computer from the other computer. I think this should be possible (in theory anyway), a bit like when you access the com port directly through hyper terminal, you basically need something that relays this through some sort of telnet like shell, of course the difficult bit could be getting the software on the remote PC to the virtual com port we have created. I have attempted to "draw" this out, be sure to let me know if I am on the right tracks




-------*Computer 1*-----------...............................----------*Computer 2*----------------
[COM Port]<->[Telnet Relay]-------network-------[Telnet Client]<->[Virtual COM Port]