Duplicate Appointments Eliminator for Microsoft Outlook easily removes duplicate appointments. Works with, but does not require Exchange Server. Powerful algorithm for quick, efficient and thorough scans. Allows you to either delete all the duplicates or move them to a folder of your choice. Works with Exchange public folders or other shared folders. Comparisons of two appointments (optionally) based on subject, location, start time, end time, body, categories, recurrences, and required attendees. You can choose to operate on a single folder or select many folders at once. Integrates directly into Outlook for easy access.
Free to try
Microsoft Outlook 2010 (both 64-bit and 32-bit), Outlook 2007, Outlook 2003, Outlook 2002, or Outlook 2000