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The COM+ Event System Service must be started before setup can continue_EventSystemStopped


Applies to: Exchange Server

Topic Last Modified: 2012-06-05

The content in this topic hasn't been updated for Microsoft Exchange Server 2013. While it hasn't been updated yet, it may still be applicable to Exchange 2013. If you still need help, check out the community resources below.

Having problems? Ask for help in the Exchange forums. Visit the forums at: Exchange Server, Exchange Online, or Exchange Online Protection.

Microsoft Exchange Server 2007 setup cannot continue because its attempt to install the Client Access Server or Edge Transport server roles failed because the COM+ Event System service is not started on the target computer.

Exchange 2007 setup requires the computer that you are installing Microsoft Exchange to have the COM+ Event System service status set to Started.

The COM+ Event System service supports system event notification for COM+ components, which provide automatic distribution of events to subscribing COM components.

Both the Client Access Server and Edge Transport server roles have dependencies on COM+ components that subscribe to the COM+ Event System service.

To resolve this issue, verify that the COM+ Event System service status is set to Started on the local computer, and then rerun Microsoft Exchange setup.

To set the status of the COM+ Event System service to 'Started'
  1. Right-click My Computer, and then click Manage.

  2. Expand the Services and Applications node, and then click the Services node.

  3. In the right pane, locate the Com+ Event System.

  4. Right-click Com+ Event System, and then click Properties.

  5. Set the Startup Type to Automatic and the Service status to Started.

  6. Click Apply, and then click OK.

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