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Event ID 7018 — Basic Service Control Manager Operations

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Applies To: Windows Server 2008

The basic operations that Service Control Manager (SCM) performs include managing the services and driver services that allow the operating system to start successfully, and reporting when one of these services or driver services fail during system startup. These operations are not associated with any particular service.

Event Details

Product: Windows Operating System
ID: 7018
Source: Service Control Manager
Version: 6.0
Symbolic Name: EVENT_CIRCULAR_DEPENDENCY_AUTO
Message: Detected circular dependencies auto-starting services.

Resolve

Remove the circular dependency

This issue occurs because the autostarted services have a circular dependency chain, for example, service A depends on service B which depends on service C which depends on service A. To resolve this issue, remove the circular dependency.

To perform this procedure, you must have membership in Administrators, or you must have been delegated the appropriate authority.

To list the dependent services for a service and remove the circular dependencies:

  1. At a command prompt, type sc qc service_name to view the other services on which service_name is dependent.

  2. Type **sc config **service_name depend= service_name/+group_name (where service_name is the name of any noncircular dependent service and group_name is the name of any noncircular dependent service group) to remove dependencies on individual circular services or service groups.

    Note: If the service has no dependent services or service groups, enter a null value for the depend parameter.

For more information about the sc command, see SC Command Reference Help (https://go.microsoft.com/fwlink/?LinkID=84961).

Verify

To perform this procedure, you must have membership in Administrators, or you must have been delegated the appropriate authority.

To verify that the Service Control Manager (SCM) is successfully sending commands to services:

  1. Open the Services snap-in by clicking the Start button, Control Panel,  and Administrative Tools, then double-clicking Services.

    Note: For Windows Vista, use the Classic View display option in Control Panel to see the Administration Tools.

  2. Right-click on a stopped service that is not a system service and select Start. If the SCM was successful in starting the service, the Status field for that service will display Started.

 To verify that the Service Control Manager is logging service events correctly:

  1. Open Event Viewer by clicking the Start button, Control Panel, and Administration Tools, then double-clicking Event Viewer.

    Note: For Windows Vista, use the Classic View display option in Control Panel to see the Administration Tools.

  2. Click Event Viewer (Local), then Windows Logs and System.

  3. In the details pane, click on the Source column to view the events sorted by the entity that logged that event. For events logged by the SCM, the source is the Service Control Manager Eventlog Provider.

  4. Review the events and confirm that event ID 7036 was logged for the action taken by the SCM in step 1 of the To verify that the Service Control Manager is successsfully sending commands to services procedure above.

Basic Service Control Manager Operations

Core Operating System