The .nk2 file holds your address "autocomplete" data. You won't want to delete it.

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


"Terri" wrote in message ...
Hi - you gave me advice way back on 7/13 regarding moving my .pst files. I
now have a file residing in My Documents that is called Outlook.pst but it
has not been accessed for a week so obviously is not the .pst file in use.
I also have a pst file residing in Doc & settings/Admin/Microsoft/Outlook
that is called Outlook.NK2 - what is this?
I thought I copied the pst file and dont undertand what the NK2 is....and am
afraid to actually delete a file for fear that my .pst will be lost.
A simple thing has turned into a major problem for me when all I want to do
is to move the .pst into My Docs for easy copying!