Actualizar a Exchange 2010

​http://www.networkworld.com/community/node/47778
http://www.commodore.ca/windows/exchange/how_to_upgrade_exchange_2007_to_exchange_2010_in_2hours.htm
http://technet.microsoft.com/en-us/library/bb691354.aspx

error de version de esquema
http://social.technet.microsoft.com/wiki/contents/articles/2772.exchange-schema-versions-common-questions-answers.aspx