Sunday, March 13, 2016

OUTLOOK AUTOCOMPLETE FILE (NK2) ADDRESS BOOK FILE

Every time that you type an email address or name in the message window of MS-Outlook, it automatically offer you a list of users and email address that you can choose. This feature is known as 'AutoComplete' and Outlook automatically build this emails list according to user activity and save it into a file with .NK2 extension.

In some circumstances, you may need to repair or modify the values appeared in the AutoComplete list, or you may want to remove unwanted email addresses and/or to add new email addresses. MS-Outlook doesn't provide any ability to edit this AutoComplete list, so this is where NK2Edit software can help you.

When you edit your NK2 file, remember to verify that the executable of Outlook (Outlook.exe) is not running. If you edit the NK2 file when Outlook is opened, Outlook may save the NK2 file and overwrite your changes.

Know the limitation for number of records in NK2 files: Outlook 2003/2010/2013 limits the maximum number of records in NK2 files to 1000, while Outlook 2007 limits the maximum number of records to 2000.

In Outlook 2010 and Outlook 2013, the AutoComplete file is saved with .dat extension and its header data is a little different from the previous versions of Outlook. In order to save the AutoComplete file for Outlook 2010/2013 properly, you have to save the file with .dat extension, so NK2Edit will save it with the new file header of Outlook 2010.

Outlook allows you to delete the AutoComplete cache completely, from both local AutoComplete file and the message store, by using the following command-line option: 
Outlook.Exe /cleanautocompletecache


When you use the above command-line option, the AutoComplete file is deleted completely, and NK2Edit will not be able to edit the AutoComplete data until the file is created again by Outlook, after the user sends the first message.


Enjoy Outlook...


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