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Email Auto Complete has stopped working in Outlook 2003

Posted on 2007-10-15
Medium Priority
Last Modified: 2008-01-09

Autocomplete in Outlook 2003 has stopped working? I have checked that the option is enabled  in Tools -Email Options - Advanced Email Options. Was working fine on Friday and no changes were made over the weekend.

Any Ideas? Thanks
Question by:justanicegirl
  • 2
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LVL 97

Expert Comment

ID: 20079119
Greetings justanicegirl !

What is the error?  You cannot enable see any names when you click on To field?  You type an address, and Outlook will not remember it next time?

Autocomplete is compose of Address Book and nickname file.

l. The nicknames are kept in a NK2 file.  With Outlook close, search for *.NK2 and rename the file.  When Outlook opens, a new one should be created.

.NK2 file is located in
C:\Documents and Settings\<user>\Application Data\Microsoft\Outlook folder. It is a hidden file. Go to any folder and select Tools > Folders Options > View. Check "Show hidden files and folders".  Click OK.

II. Enable Contacts Database As An Email Address Book in Outlook 2003

1. click Tools > Email Accounts
2. click on 'View or change existing directories or address books' option.
3. click 'Next'.
4. click on 'Add' button > 'Additional Address Books' option.
5. click 'Next'.
6. click on the 'Outlook Address Book' option.
7. click 'Next'.
8. click on 'Finish' button.

9. click on the 'Contacts' tab
10. right-click on the 'Contacts' option on the left-hand side (under 'My
11. click on the 'Properties' option - see multi-tabbed dialog.
12. click on the 'Outlook Address Book' tab.
13. ensure that the 'Show this folder as an e-mail address book' option is
14. click OK.

Your Contacts database should now be active as an e-mail address book.


Hope this helps, war1

Author Comment

ID: 20083707
Hi War1,

The autocomplete was working fine up until last Friday on the PC. Each time the user enters a name on the TO file it resolved the name to an email address.  

Creating a new *.NK2 file would mean that

Author Comment

ID: 20083728
Hi War1,

The autocomplete was working fine up until last Friday on the PC. Each time the user entered a name in the TO file it resolved the name to an email address.

If the user enters an email address now in the TO field it has to be entered "long text" first time and then the 2nd time it resolves. Auto Complete appears to be working but not for any addresses before Friday? What would cause the *.NK2 file to clear itself? Is it corrupt?

LVL 97

Accepted Solution

war1 earned 500 total points
ID: 20086515
Yes, NK2 file got corrupt.  So the new nickname file works. You can input data into To field and it will remember the next time.

If you want to recover addresses from old NK2 file, did you renamed and not delete the old NK2 file?  If you rename the file, move the file to another folder. Rename it back with NK2 extension. Then use NK2View

to move the addresses to new NK2 file.

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