With Windows the 32 bit version of PS is available, I use it for my Epson, it is in the Adobe PS folder in Programs Files (x86) on your HD. I freaked out over this and then some one just told me to go to this folder and open the 32 bit PS. Your only restriction is the 3.5gb limit to memory. You won't get there even with a 6x17. It also doesn't ask for registration or talk to Adobe when opened.
Enjoy
Tom
Bookmarks