Error message when you try to sync Windows Mobile Device Center with either Outlook 2010 64-bit version or with a Click-to-Run installation of Outlook 2010: "Either there is no default mail client or the current mail client cannot fulfill the mes...

When you try to sync Windows Mobile Device Center with either a 64-bit version of Microsoft Outlook 2010 or with a Click-to-Run installation of Outlook 2010, you may receive the following error message: Windows Mobile Device Center syncs correctly with a 32-bit version of Outlook 2010 that uses a standard MSI installation.

If a sync partnership already exists and you install an unsupported version of Outlook 2010, Outlook contacts, email and calendar items will be removed from the phone during the first sync time. When this happens you can recover the items from your phone by installing the 32-bit version of Outlook 2010 and using the sync functionality against Office 2010 to recover the items.

There are no plans to update Windows Mobile Device Center to improve compatibility with Outlook 2010.

If a sync partnership already exists and you install an unsupported version of Outlook 2010, Outlook contacts, email and calendar items will be removed from the phone during the first sync time.

Mail, contacts, calendar and tasks can still be synced over the air with a Microsoft Exchange server running Exchange Active Sync. Windows Phone can also sync over the air with Hotmail, Gmail, Yahoo mail and others. Windows Mobile Device Center can still be used to sync non-Outlook data from the computer to a Windows Phone even if running Outlook 64 bit or Outlook Click-to-Run.

If you want to sync a Windows Phone with Outlook 2010, you can use a 32-bit version of Outlook 2010 that uses a standard MSI installation.