[RNBeavis]

it will say x86 in the process tab against its name. If you're running a 32 bit OS I wouldn't think this will do anything as the memory addressing is limited physically by the 32 bit-ness of your setup. Il-2 is most definitely not 64 bit, dunno 'bout the others, I would think not.

Interestingly, iTunes 64bit registers as x86 in task manager, and that I think is because it's not really a 64bit program, just tweaked to take advantage of the 64 bit architecture and drivers.