Anyways, I was trying out IOEx again with the latest beta and images aren't showing up, so that's a no go...
What, again? No, latest is 2.4.4 beta 2, and I've fixed the images problem already.
Now, about the East Asian display in InstallOptionsEx: I still can't test the problem you're having, and you could have said from which version did this problem start from. It's not ok for me to keep guessing where the problem occurs in the code. I use string functions throughout the entire code. If you can't help me, then I can't help you.