Socks proxies. These proxy servers know how to work practically with any type
of information on the Internet (TCP/IP protocol),
however for their use in programs there should be obviously indicated a ability to work with SOCKS proxy.
Some additional programs are necessary for using of SOCKS proxies within a browser
(browsers do not know how to work through SOCKS proxy).
However, any ICQ versions (and many other popular programs) can work perfectly through the SOCKS proxies.
At last, we want to pay attention, while working with socks proxies it is necessary
to specify its version: socks 4 or socks 5.