It is known that if there is some corruption with the sync relationship, Activesync is known to duplicate items in Outlook and the mobile device. DupeDeDupe is a freeware application released at Modaco that allows you to scan and remove such duplicate contacts directly from your Windows Mobile Pocket PC or Smartphone device. Contacts are compared based on the following fields:

+ File As
+ Email
+ Home, Work & Mobile phone

If all the fields match, it is considered a duplicate and is listed for deletion. The only downside of the software is that it does not show names of the contacts which it deems duplicate.

The application is quite fast and can scan for duplicates within seconds. Currently it scans only contacts but support will be added for Calendar and Task items as well. So keep an eye on the next release through AppToDate.

Click here to download DupeDeDupe for Windows Mobile directly from your mobile phone browse.