1) What is the Windows Management Shell?
Microsoft Exchange Server 2007 Service Pack 1 (SP1) includes an automation and scripting shell called the Exchange Management Shell.
2) What is it used for?
The Exchange Management Shell is a command-line management interface that is used to administer servers in an Exchange 2007 organization.
3) Upon which technology the Exchange Management shell is built?
The Exchange Management Shell is built on Microsoft Windows PowerShell technology