One or more Active Directory Connector servers were found_ADCFound

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Applies to: Exchange Server 2013

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Microsoft Exchange Server 2007 and Exchange Server 2010 setup can't continue because one or more Active Directory Connectors (ADC) have been found in the current Microsoft Exchange environment.

ADC replicates objects from Exchange Server version 5.5 to the Active Directory directory service in a mixed mode Microsoft Exchange environment and isn't supported by Exchange 2007 or Exchange 2010.

Exchange 2007 or Exchange 2010 setup requires that all ADC components be removed.

To resolve this issue, remove all ADC components, and rerun Exchange 2007 or Exchange 2010 setup.

To remove Active Directory Connector components
  1. To disable the ADC service on the server that is running the ADC service, right-click My Computer on the desktop, and then click Manage.
  2. Expand the Services and Applications node, and then click the Services node.
  3. In the right pane, right-click Microsoft Active Directory Connector and then click Properties.
  4. Change the Startup Type to Disabled. The next time that the computer starts, the ADC service won't start.
  5. Click Apply, and then click OK.
  6. To uninstall the ADC service, use the Active Directory Installation Wizard on the Microsoft Exchange 2000 Server or Microsoft Exchange Server 2003 CD. Open the \ADC\I386 folder and double-click the Setup.exe program. Follow the prompts to Remove All ADC service components.

    Important: You must complete step 6 and Remove All ADC components to resolve this issue. It's insufficient to disable the ADC service.