I guess this topic is old but if you have a problem with FiSH or Mircryption you could try Dirt at http://dirtirc.sourceforge.net/.
It is very light-weight, does not alter mIRC *AT ALL* and it is very transparent as a Socks4 proxy.
/firewall -cm4-d on 1088 will be enough for configuration.
You can connect to IRC servers as usual and type /dirt to list commands.

Last edited by TmowhrekF; 06/03/13 12:16 AM.