Exchange 2007 Global Cmdlets overview.
 

• Global Cmdlest
  Test-ServiceHealth
  Test-SystemHealth
  Get-ExchangeServer
  Set-ExchangeServer
  Get-EventLogLevel
  Set-EventLogLevel
  Get-ExchangeAdministrator
  Add-ExchangeAdministrator
  Remove-ExchangeAdministrator
  Get-OrganizationConfig
  Set-OrganizationConfig
  Get-ExchangeCertificate
  New-ExchangeCertificate
  Import-ExchangeCertificate
  Export-ExchangeCertificate
  Remove-ExchangeCertificate
  Enable-ExchangeCertificate
  Get-ADPermission
  Add-ADPermission
  Remove-ADPermission

Exchange 2007 Transport Cmdlets overview.

Exchange 2007 Cmdlet list overview.

These Cmdlets are used with the Exchange Management Shell, this command-line interface is for administering Exchange 2007 servers in an Exchange 2007 organization. The Exchange Management Shell is built on Microsoft Windows PowerShell technology.

Mailbox and Recipient Cmdlets
Transport Cmdlets
Client Access Cmdlets
Global Cmdlets
Unified Messaging Cmdlets