Where is the NK2 file in Outlook 2007

When typing addresses in Outlook it is handy to use the feature that remembers the email address you have sent to previously. When moving from one PC to a new one normally you need to copy the outlook.nk2 file from your C:\Users\(your username here)\AppData\Roaming\Microsoft\Outlook

Once you have copied that from the old PC to the new one all should be well.