COM+ Event System (EventSystem) Service Defaults in Windows XP

Default Settings

Startup type: Manual
Display name:COM+ Event System
Service name:EventSystem
Service type:share
Error control:normal
Path:%SystemRoot%\system32\svchost.exe -k netsvcs
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EventSystem

Default Behavior

COM+ Event System is a Win32 service. In Windows XP it won't start until the current user starts it. When the COM+ Event System service is started, it is running as LocalSystem in a shared process of svchost.exe. Other services and drivers are allowed to run in the same process. If the COM+ Event System fails to start, the technical information about the error is added to the Event Log. Windows XP startup should proceed, but a message box should be displayed informing the user that the EventSystem service has failed to start.


COM+ Event System depends on the Remote Procedure Call (RPC) service.

The System Event Notification depends on the COM+ Event System service.

Restore Default Startup Configuration of COM+ Event System

Before you begin doing this, make sure that all the services on which COM+ Event System depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt.

2. Copy the command below, paste it into the command window and press ENTER:

sc config EventSystem start= demand

3. Close the command window and restart the computer.

The EventSystem service is using the es.dll file that is located in the C:\Windows\system32 directory. If the file is removed or corrupted, read this article to restore its original version from Windows XP installation media.