Note: This blog is written as if you are migrating a user from Windows XP with Office 2003 to Windows 7 with Office 2010.
If are migrating a user to a new computer coupled with an upgrade to Outlook 2003 you can import the nickname file from Outlook 2003 into the new Outlook 2010 suggested contacts:
1. Copy the NK2 file from the old machine which is usually located in C:/Documents and Settings/USERNAME/Application Data/Microsoft/Outlook. This file may be hidden and is called the same as the Outlook profile.
2. Put the NK2 file in the following location on the new PC. %appdata%MicrosoftOutlook
3. Open control panel –> Mail and click on the Show Profiles button:
4. While the mail profile list is open, click on Start –> Run and type in outlook.exe /importnk2 and click on OK
This should launch Outlook and import the addresses into the Suggested Contacts and the users should see the addresses appear from their old Outlook: