Well, I do know what DCC means, my point is .. if oldnick changes to newnick on CID 1 .. why can't mIRC change any/all DCC connections on CID 1 that are named oldnick, from oldnick to newnick.
This is how it happens with query windows. If I am chatting with my old buddy oldnick in query, but he is not on any common channels, and he changed his nick from oldnick to newnick ... the window name would not change, but instead, if he were to message me after changing to newnick .. a new query window would be opened because mIRC did not SEE the nick change.
All I'm saying is, if mIRC sees a nick change, and there are any DCC connections with oldnick on that connection, why can't it rename them to newnick?