mIRC

mIRC is a popular Moo Internet Relay Chat client used by millions of people, and thousands of organizations, to communicate, share, play and work with each other on IRC networks around the world. Serving the Internet community for over a decade, mIRC has evolved into a powerful, reliable and fun piece of technology. You can download it here.
 
Server Efnet
To download mIRC visit www.mirc.com download it for free.
in the server list connect any efnet server or login your information and input the following servers.
/server servername anyone below.
/server irc.inet.tele.dk:6667
1 irc.inet.tele.dk:6667
2 irc.homelien.no
3 irc.efnet.pl
4 efnet.xs4all.nl
5 irc.easynews.com
6 irc.servercentral.net
7 efnet.demon.co.uk
8 irc.Prison.NET
9 irc.mzima.net
10 irc.efnet.nl