Wednesday, April 11, 2007

Slow Outlook 2007 Address Lookup

I've been using Outlook 2007 since July. One thing i've struggled with is the slow lookup of addresses from the global address book in Outlook 2007. When i'd hit the new button and type three last names i'd have to sit back and wait for 30-60 seconds while Outlook 2007 looked up my recipients. The cure to this slow performance in Outlook 2007 seems to be replacing the Outlook Nickname Cache file which ends in .NK2 and forcing Outlook 2007 to create a new native nickname cache. We only saw slow performance when we upgraded Officed 2003 uses to Office 2007. So we renamed the NK2 file and then opened Outlook 2007 and let it create a brand new nickname cache. The *.NK2 file is located in c:\documents and settings\username\application data\microsoft\outlook

You will have to set your PC to show hidden files to see the *.NK2 files.

Close Outlook
Click the Start button.
Click Search
Click For Files And Folders
Click All Files And Folders

Click on More Advanced Options

Ensure that “Search Hidden Files and Folders” is checked.

Search for *.nk2 (See right picture)
Right click and choose Rename. Rename to the file to end with .bak
Then open Outlook and resend your e-mail.