It is not a problem if you use Unicode instead of code pages. If you don't use Unicode, then you won't be able to upgrade mIRC beyond 6.35 unless you want to try the somewhat troublesome methods of scripting code page support. Khaled has stated that there aren't any plans to provide code page support in mIRC anymore. After Unicode being available for a very long time, it's time for people to start making use of it. It's much superior to code pages.
