I’m using Windows XP and playing the taiwan DOMO server. I’m not sure if this will work with other online games and Windows version though. I’m not a computer or IT expert, so if you don’t trust me or yourself, don’t attempt this. Search for better options.
In any case, I managed to input Chinese words into the game, which I’ve been wanting to do and sacrificed a few hours of sleep to find out how. I have a feeling that many many people already know how to do this but I didn’t, and now I want to share how.