Writing through a socket connection

Hi all,

I'm looking for ideas on how to initiate a socket connection from MII then send a command to the receiving end.  Something very simple, as in one character to let the target know that it needs to do something.

PCo has the socket listener, but it does not appear to have write-back capabilities.  I saw an unanswered thread from 2010 on a similar topic:  http://scn.sap.com/thread/1641475.

Has anyone done this (withough purchasing another layer of software)?  Perhaps a custom action block?

Thanks for your ideas!
Paul