Outlook PAB File

Go to:
http://www.slipstick.com/contacts/index.htm

And scroll down to sharing, or go to:

http://www.slipstick.com/outlook/share.htm

The problem is that the .pab file, as with any other data file that can be changed, will not allow multiple people to have write access to the file at the same time.

If user A opens a file and modifies it and user B opens the same file and modifies the same data elements that user A modified, before user A gets a chance to save the changes, then user A's modification may no longer exist.

The only way I can see to get around this is as follows:
Place the .pab file on the shared resource.
Users will then either have to import it individually into Outlook or copy it over their current .pab file in individual profiles.