The migration from MSN Calendar to the new Windows Live Calendar service will begin as early as March 2009, and will ensure that all the supported user data on the MSN Calendar is moved to the Windows Live Calendar without any action required for the user. Please note that Windows Live Calendar does not support attachments to meetings and appointments, and will be removed during the move. To preserve your attachments, you must save them prior to March 1st, 2009. Also, if you have been using Outlook Connector 12.0 to synchronize Outlook with your MSN Calendar, you may also be able to retrieve download a copy of the attachment from the event in your Outlook calendar.
It’ll also be required that Outlook Connector 12.0 users upgrade to the 12.1 version as the 12.0 version does not connect to Windows Live Calendar. As of Feb 24th, 2009, users that’ven’t upgraded to 12.1 manually will be required to upgrade when they boot Outlook and try to synch their Hotmail account. You can download 12.1 version as of today. After installing Outlook Connector 12.1 it will upload your appointments and meetings to your new Windows Live Calendar. At that point the Outlook Connector will no longer synchronize with the MSN Calendar service.