Nope. While I don't admit to using Windower, if I did, I'd be able to tell you that it works fine, besides suffering from the playonline viewer crashing after I try to boot ffxi, same as without Windower.
I've had Windows updates disabled for a while now.
I normally have the Windows Installer service disabled, but if I turn it on, when I run a filecheck on pol, a windows installer box appears, and prompts me to find the pol and tetra master installer. The filecheck finds no problems, otherwise.
I'll redownload the trial to get ahold of the pol installer, and see what happens.
Edited, Jan 21st 2014 12:47pm by Demoncard
Well, it made me an additional, unpatched pol, but this one is in C:\Program Files\Steam\steamapps\common\ffxi\SquareEnix, instead of C:\Program Files\Steam\steamapps\common\FFXIPAL\SquareEnix.
Edited, Jan 21st 2014 1:28pm by Demoncard