XP Path

 

drive:\Documents and Settings\user name\Application Data\Microsoft\Outlook

 

Win7 Path

 

driver:\Users\user name\AppData\Roaming\Microsoft\Outlook

 

File Name:

*.Nk2

How to Import:

Execute outlook with command line:

outlook /importnk2

Reference:

http://office.microsoft.com/en-us/outlook-help/import-auto-complete-list-from-another-computer-HA102545688.aspx