With NK2 files the only way to ensure that this data followed the user around was to implement roaming profiles.įrom testing I have verified that Outlook 2010 extends the attributes of a users mailbox on the exchange server adding in these extra required attributes. Outlook now stores these inside the users mailbox as 'suggested contacts'īecause this data is stored in the users mailbox, if a user moves to another computer, the suggested contacts will follow them. With the release of outlook 2010 them nasty NK2 files are now gone.