No it doesn't. WOW64 is a very thin emulation layer that is only needed
when a 32bit program makes operating system calls, such as drivers. 32 bit
programs run natively on a 64bit cpu.

"Bill Frisbee" <wfrisbee@comcastx.net> wrote in message
news:2066A51C-0809-43CB-B3F1-0B54AD3CC17D@microsoft.com...
> If 32 bit compatibility wasn't required, it would be much closer in size.
> WoW (Windows on Windows) takes up a bunch of space.
>
>