There is a way, but do realize if you try this you are breaking the EULA as far as SquareEnix is concerned and they can suspend or ban you account if they find out (however unlikely that may be) I don't know the sight for the program, but it allows you to minimize the screen so you can function other programs, however this program supposedly won't allow you to do anything ingame at the time.
I have not used it, nor will I use it so I don't know much about it or how it works, if you try it you do so at your own risk and be aware you may be risking you entire account if SE does somehow catch you.
Zerjha - 42DRK
"Is the evil in my soul just the zealotical anger of the good,
or is the good simply the perverted lust of the evil." - Me