Hi,
After much testing and format/re-installing, I've finally pinned down the exact reason why I couldn't play using
Windower in Windows 10. The culprit is my default Japanese keyboard (using MS IME).
I run the english version of Windows 10, with Japanese/IME keyboard as default. I can start POL manually
and it works fine (but no japanese input in-game, of course).
With Windower, however, as soon as I launch POL, I get a crash. I can't even get into POL.
The POL splash screen appears, then the POL window gets created, with the titlebar saying "PlayOnline Viewer Ver.1.18.15e - Windower Enabled",
but nothing displays, and I get the windows pop-up saying "PlayOnline Viewer has stopped working" and it must be closed.
In Windows 8.1 (still Win 8.1 english with Japanese/IME keyboard), it works fine, and japanese input works fine in-game.
Back to Windows 10, if I add another keyboard (US English), POL launches just fine.
If I switch back to JP/IME before launching FFXI, it crashes upon launching it.
Once in-game, I can switch to JP/IME, and can even start typing Japanese (IME working fine), but as soon as I hit enter to confirm
the sentence (IME confirm), the game crashes.
I've completelly formatted and re-installed Windows 10 several times, and I always get the same results.
Hopefully this helps pinpoint the issue, which I would really appreciate seeing resolved, as I can't type Japanese while in Windows 10.
Edit: Forgot to mention, disabling the IME plugin still causes the crash. I even tried a new profile with no plugins/addons at all, and it still crashes.