Hey guys

I have been playing battlefields 2142 for a while via bootcamp. I am getting sick of having to use XP. I just hate it. I am not in the position financially to do anything until I have finished paying this years tax (2 more months).

I read on another forum that I guy downloaded a copy of the Mac version and used his windows key/ account and it worked. I would like to know two things, is this possible and is it legal?