HELP on serial interfacing

Hi i am looking for anyone who has the codes for serial programming in visual basic using mxcom.
any codes that can serial interface between two pc of between visual basic and another hyperterminal or pc.
I have some codes but they can work and i am stuck on it now not knowing what to do.
So if anyone can help i wiould really appreciate it will full gratetude.
Anyone who know how to do serial programming PLS help........
Thanks
you can mail me directly at [email protected] or post back a reply.
Cheers
Kavin