Do the CALs from Exchange 2003 Server apply to Exchange 2007? ... or do we need to purchase a whole new set of CALS for Exchange 2007 when we migrate from 2003? All part of planning and implementation! Thank you! JLH

Hi, As far as I know, we still need to buy the new CAL for Exchange 2007. For your convenience, please view the following resource as the reference. http://www.microsoft.com/exchange/howtobuy/default.mspx http://www.microsoft.com/exchange/evaluation/editions.mspx Thanks Allen