Microsoft Exchange Server 2007 Service Pack 1 Shell Help
The Microsoft Exchange Server 2007 Exchange Management Shell Help file helps you use cmdlets in the Exchange Management Shell to perform day-to-day administration of Exchange 2007. You can view help in the Exchange Management Shell by using the Get-Help cmdlet. This Help file applies to the Microsoft Exchange Server 2007 Service Pack 1 (SP1) version of Exchange Server 2007.
Source: Microsoft Exchange Server 2007 Service Pack 1 Shell Help