Sorry for the late reply, was too busy last this week, but when I saw your reply including releasing the minor version, then I downloaded and installed, then WOW WOW WOW, it’s displaying Thai font correctly on both WinXP(as it used to), and Win 7 NOW!!!.
btw, I should report this bug since v12.0.1 lol
GREAT JOB, Yutaka
Thank you so very much again!!! :-D :-D