Hi, Can any one provide any url that states What features can be accessed only from power shell, in exchnage 2007 and how does the message flow/routing works in exchnage 2007. Thanks, Dean.

Hello Dean, All the things, what you can do with EMC, can be done with powershell plus some additional things like Public folder permissions, RGC configuration, GAL creation, Address list conversation (from legacy to 2007), etc and various advance settings which can not set with EMC, those can be done with EMS. EMS help on TechNet can give you list of all the cmdlets and their setting details. Exchange Management Shell (SP1) Here are some of the architecture diagrams for Exchange 2007 Microsoft Exchange Server 2007 Transport Server Role Architecture Diagrams Exchange Server 2007 Component Architecture

Supplement: Try to run Get-Excommand, this cmdlet will give you a list of all existed cmdlet