Hi again,
Follow-up questions/comments:Thanks for the info Aaron. The WoW64 stuff is even more confusing. But I do understand that Program Files (x86) is for 32 bit programs. And that I should follow the prompt from the setup/installer/wizard.
Windows is very smart and knows where to install programs if you allow the standard installation. When installing a 32-bit software program it will automatically be installed in Program Files (x86). For example, I had a choice when I downloaded Office 2010 between 64-bit and 32-bit. I selected the 32-bit version and when I clicked the file for installation, the installer properly selected Program Files (x86).
Corrine, I'm wondering if 64 bit was available, why you chose the 32 bit. Is there some advantage in doing so? Or in other words, might there be programs where it might be in my best interest to choose a 32 bit version, even if a 64 bit version is available?
New questions/comments:I just happened to download a program where the system requirement info says it's compatible with Windows 7 and both 32 bit and 64 bit. However the setup wizard prompted to install in Program Files (x86). So that got me thinking again, and trying to understand this issue again.
I wonder if most or all laptop/64 bit operating systems provide this kind of dual compatibility system. And if many of the various program/applications' creators know this, and therefore claim in their documentation that it's compatible with both 32 and 64 bit OSs?
So now I'm thinking, if that's true, then a program that's truly 64 bit will actually have both a 32 bit and a 64 bit download? So that there's a difference between a
true 64 bit program and a program that's
compatible with 64 bit, by virtue of 64 bit OSs that offer this kind of dual compatibility system?
Did that make sense? Have I finally understood this issue?
Thanks for your help
