Hello there. I have been investigating the EXIF tags that Windows XP can add to files, and have successfully identified five extra tags and their mappings to the fields on the File|Properties...|Summary tab in Explorer (both "simple" and "advanced" views). XP ignores the standard UserComment field, alas, so I was forced to look into this.

(For those not using XP to manage their photos, Explorer allows you to view most EXIF data within the File|Properties... dialog, and even add some EXIF fields as columns in Detail view)

Since I don't have CVS access, or even a PHP development environment that would allow me to do the necessary changes myself, I am posting this here in hope that someone will add this to the upcoming 4.2.0 release.

I suggest the following entries for the TagTable:

static const struct {  
  unsigned short Tag;  
  char *Desc;  
} TagTable[] = {  
{ 0x00FE, "NewSubFile"},  
{ 0x00FF, "SubFile"},  

...

{ 0x9c9b, "Title" },     // Win XP specific, Unicode 
{ 0x9c9c, "Comments" },  // Win XP specific, Unicode 
{ 0x9c9d, "Author" },    // Win XP specific, Unicode 
{ 0x9c9e, "Keywords" },  // Win XP specific, Unicode 
{ 0x9c9f, "Subject" },   // Win XP specific, Unicode, not to be confused with SubjectDistance and SubjectLocation