The Exchange System Manager uses extension snap-ins to perform its tasks. Extension snap-ins are able to extend other extensions’ functionality. To maintain configuration information, Exchange System Manager communicates with a Windows 2000 or Windows Server 2003 domain controller.

The Exchange System Manager window is displayed when Exchange System Manager is started. It contains directory information relating to the Exchange organization from the specified domain controller. Multiple Exchange System Manager windows can be simultaneously displayed. To do this, simply select the particular node, and select New Window From Here to open a new Exchange System Manager window.

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