Hundreds of duplicate Contacts

[Craig]

While attemptig to highlight over 400 contacts for a mailing, I inadvertently pressed a combination of control/shift or control/alt and created duplicates of all these contacts. How can I eliminate them without going through them one-by-one??? Many thanks for any suggestions.

 

[Nikki]

Outlook Contact Tools, Duplicate Checkers
http://www.slipstick.com/addins/contacts.htm#dupes

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Nikki Peterson [MVP - Outlook]

While attemptig to highlight over 400 contacts for a mailing, I
inadvertently pressed a combination of control/shift or control/alt and
created duplicates of all these contacts. How can I eliminate them without
going through them one-by-one??? Many thanks for any suggestions.