sue mosher [mvp]

That's perfectly normal if the attachment is contained in the item. There is
no external path in that case. The PathName will always be blank unless the
attachment is actually a shortcut to an external path.

If you need to make the attachment available to another component, call its
SaveAsFile method to save it to a local or network folder.

--
Sue Mosher, Outlook MVP
Author of Microsoft Outlook 2007 Programming:
Jumpstart for Power Users and Administrators
http://www.outlookcode.com/article.aspx?id=54