I am planning an upgrade from SBS2003 to full product Enteprise 2003 plus Exchange 2007. I find that the Transition Pack does not address compatibility with an upgrade path to Enterprise Edition and Exchange 2007. I was going to do a co-exist deployment with ADMT and EXMERG to migrate to the new server platform. Is this the appropriate methodology or should I invest in the Transition Pack - assuming it supports the upgrade path defined above? Should I consider an initial deployment of 2003 Standard plus Exchange 2007 then upgrade in place to Enterprise version? HELP...! Any assistance or direction to papers or KB articles would be appreciated. I keep getting conflicting recommendations from a number of engineers and documentation. TIA- Alan- Alan Jay Mazer, Consulting Engineer Micronautics - Total Solutions Provider Micronautics@Verizon.net Alan.Mazer@Verizon.net AlanJMazer@hotmail.com