Yes, it is annoying. I'd like to have the Asian code pages installed, but because of the issue with Ctrl-O, I don't. I just really don't know that there is a good way around this problem, though.
I suppose mIRC could possibly "fake" the ctrl code characters when displaying them in mIRC, but when you copy/paste them into something else, they revert to the actual characters. That could work without actually changing the ASCII codes themselves. I'm not sure how possible that would be, though. mIRC does "draw" the display using a rich edit control, so it should be possible. I don't think dialogs are rich edit, though. So it may be limited to only the display in the main windows.
