Mike M. wrote:

I want to transfer my contacts files to a new PC but have 8 .pst
files in the folder. The old PC used XP & Outlook 2003. The new PC
uses Vista and Outlook 2007.

Why not open each and see if any contains anything of value? Then you can
transfer all that contain data you wish to use. If any contains only old
data you don't need, then don't transfer it.
--
Brian Tillman [MVP-Outlook]