are users .Pab files compatable for outlook xp to outlook 2007?

Hi Patrick,

Office 2007 does not support .pab files.

"The Personal Address Book, an ANSI address book that is part of Outlook 96, is removed. The Personal Address Book was replaced by Outlook Contacts in Outlook 97. Personal Address Book entries were stored in the local computer files with the extension .pab. Office Outlook 2007 does not support .pab files. During configuration, all contacts in the Personal Address Book are migrated to the default Outlook Contacts folder. Customers can choose to move their contacts to a different folder, or to cancel the migration and import the .pab file later. The .pab file continues to exist in the file system, but the Personal Address Book is not accessible from Outlook. Customers cannot re-add the Personal Address Book, because Outlook does not provide this as an option in the E-mail Accounts configuration.

Reason for change: Outlook Contacts provides more functionality than .pab files.

Migration path: Office Outlook 2007 migrates the .pab file during configuration."

Source: http://technet.microsoft.com/en-us/library/cc179110.aspx

See this link for some migration information:
http://www.slipstick.com/contacts/olconpab.htm

I hope this helps.

Kind regards,
Rich