Bob
If you run the 32 bit application on a 64 bit OS, then it can address almost 4 Gig of address space.
I read this on a yahoo list, If you are running 32 bit XP and you've 3GB or more of RAM, you should change your boot.ini file to include the 3GB switch so that Photoshop and your machine is able to take advantage of that memory. Otherwise it can only access 2GB.
It sounds like a scary thing to do to me. I read about editing the boot.ini and it said any error can render your computer unbootable.
Any thoughts or advice on this?
Bob
Marcia
The real question is can Windows 32 use 4GB RAM?
And the real answer is no.
[*] I’m at work now but can check the exact numbers when I get home.
In addition, it only works as advertised if you're running Photoshop by itself. With heavy multitasking it can actually slow things down because Windows will have to page out the other apps more.
So it might work for some, but it depends on what you do.