I will be putting together a CD full of scanned photos for my boss he wishes to have searchable by the event, people, and places within the photos.

So far I have just been adding Spotlight commens to them with this information.
This makes them easily searchable as long as it is on a Mac.

Will a windows machine be able to search these comments or is there a way I can prepare them to make a windows machine be able to do so?

Thanks
-Ian