I have Photoshop 5.5 on Windows XP Pro. I downloaded the ICC profiles
from the Adobe site and installed them in C:\WINDOWS\system32\Color. I
noticed that none of these profiles are not recognized by Photoshop
5.5. All these profiles have an .ICC file extension.

I installed the Mac versions of the same profiles on a Macintosh
computer with the same version of Photoshop and it recognizes the
installed profies - downloaded the same day from the Adobe site.

Does anyone know the reason that the Windows version doesn't recognize
the profiles? Is it because version 5.5 wasn't designed for XP?