Is FFXIV ARR going to use WOW64 again?

[Alhanelem]

Hoping they will put the effort in to not relying on an emulated environment to run the game on 64 bit platforms this time around. I havn't seen any mention of this and using WOW64 means more system resources being used to run a 32bit app as if it were 64bit.

It doesn't really matter as 32 bit applications don't lose measurable performance on 64-bit Windows. The difference in resource use is also meaningless unless you're using an absolute barest of bare minimum system to play.

I'm not saying they shouldn't do it, of course, but it's a pointless complaint. Applications gain basically nothing from being 64 bit unless they're specifically programmed to use 64-bit variables / libraries. This is why the conversion to 64-bit has been so slow- Not every application has much potential for benefit.

I'd like a 64bit check button in the system option tab. Preferably in the game client itself.

Programs can't flip a switch to be 32 or 64 bit. The executables have to be compiled as such. You can provide 32 and 64 bit versions of an executable though.