I followed instructions for installing CFS3 on my W7 OS. I was advised to install CFS3 under C: directory and not under Program Files(x86). My CFS3 works fine. I now want to add the expansion packs for ETO and PTO;but, what I have read is that these packs need to be installed under Program File(x86)/Combat Flighr Simulator 3?! Before I screw everything up, could someone please advise if I can install ETO and PTO Expansion packs to my current CFS3 location under my C: directory. Thank you for any help. BobK