Thanks Gary,

Actually I will need to be able to bring in these column names
(Author, Title, Subject, Comments, etc...) into the column header of
an Explorer window.
All the files I will be dealing with here are saved emails and I will
need to update these properties. The purpose is to then go to that
saved directory where all the emails are and be able to sort/filter
the emails based on these properties.
So they will have to be able to be seen in Explorer. Is this what you
mean when you say "viewed in Explorer"?

Thanks