Just as a FYI. A while back I tried to work on a DLL that would allow doing pretty much what you propose: replace mIRC's standard text strings with translations as taken from a file. I abandoned this project after reaching the conclusion that point #9 from Khaled's list (in the post maroon linked) really has to be resolved first: most of the text boxes in mIRC's dialogs are just big enough to fit the English text, and so any translation with wider text gets cut off. Either Khaled would first have to make a more "flexible" dialog system (which is probably a lot of work), or every translator would have to adjust the positions and sizes of all controls in all dialogs to make the translations fit (..a downright nightmare). I really do like the general idea of being able to translate parts of mIRC, and I don't think all of Khaled's points are needed to get useful results, but I guess my point here is that right now, it is not easy even to get something simple going.
