If you run Exchange 2000 Server Setup by using the /ForestPrep option, you may receive the following error message:

This behavior may occur if the default Active Directory Connector (ADC) policy is missing from the Active Directory Connections container of the Microsoft Exchange configuration container. The Microsoft Exchange configuration container is located in the Services node of the Active Directory Sites and Services snap-in.

To resolve this issue, determine whether the ADC policy is installed. If it is not installed, remove and then reinstall the Microsoft ADC service to re-create the Microsoft Exchange configuration container and the default ADC policy.

To determine if the default ADC policy is installed, follow these steps:

1.	Click Start, point to Programs, point to Administrative Tools, and then click Active Directory Sites and Services.
2.	On the View menu, click Show Services Node.
3.	Expand Services, and then expand the Microsoft Exchange configuration container.
4.	Click the Active Directory Connections container. If Default ADC Policy is not listed in the right pane, the policy is not installed.

For additional information about the ADC in Exchange 2000, click the article number below to view the article in the Microsoft Knowledge Base:

For additional information about ADC installation requirements, click the article numbers below to view the articles in the Microsoft Knowledge Base: For additional information about the /ForestPrep Setup option, click the article numbers below to view the articles in the Microsoft Knowledge Base: For additional information about Exchange 2000 Server Setup, click the article number below to view the article in the Microsoft Knowledge Base: