I've learned a little more about the photo properties. It seems that Windows just doesn't "play that game" and use standard EXIF tags. I've seen lists of tag ID's, with some marked as "Windows" for the caption/description/keywords, but at some point they must have changed their minds. As it turns out, if you set properties in images now, they actually show up in the XMP block. Vista is good enough that if it updates an image, it will copy EXIF/IPTC data to the XMP block as well. XMP is an XML block of data that can contain known or arbitrary...