John,

On here (W7HP32, Classic Shell if that's relevant), the Properties box
doesn't _have_ Comments tab.

I was not talking about a tab (in the properties dialog), but about a
freeform textfield thats part of (stored in) the image. You know, one of
those iTXt, tEXt, and zTXt "chunks" that are defined for a .PNG image.

Just to be /absolutily sure/ I just retried it with a .JPG image which had
textual data stored in a 0xFFFE ID'd blocks (date, origional name). But
after having entered some data in the image properties - summary dialog
(mind you, XP here) the 0xFFFE blocks where gone, hoovered up by EXIF, and
stored in it as 0x9286 (UserComment) records.

But feel free not to believe me. Try it for yourself.

Regards,
Rudy Wieser