The CTCP protocol was implemented by Michael Sandrof in 1990 for ircII version 2.1, while the DCC protocol was implemented by Troy Rollo in 1991 for version 2.1.2.
Michael Sandrof在1990年将CTCP协议在ircII 2.1版中实现，Troy Rollo在1991年将DCC协议在2.1.2版本中实现。