COM+ Event System - Windows 7 Service
Supports System Event Notification Service (SENS), which provides automatic distribution of events to subscribing Component Object Model (COM) components. If the service is stopped, SENS will close and will not be able to provide logon and logoff notifications. If this service is disabled, any services that explicitly depend on it will fail to start.
This service also exists in Windows 10, 11, 8, Vista and XP.
Startup Type
| Windows 7 edition | without SP | SP1 |
|---|---|---|
| Starter | Automatic | Automatic |
| Home Basic | Automatic | Automatic |
| Home Premium | Automatic | Automatic |
| Professional | Automatic | Automatic |
| Ultimate | Automatic | Automatic |
| Enterprise | Automatic | Automatic |
Default Properties
| Display name: | COM+ Event System |
| Service name: | EventSystem |
| Type: | share |
| Path: | %WinDir%\system32\svchost.exe -k LocalService |
| File: | %WinDir%\system32\es.dll |
| Error control: | normal |
| Object: | NT AUTHORITY\LocalService |
| Privileges: |
|
Default Behavior
The COM+ Event System service runs as NT AUTHORITY\LocalService in a shared process. It shares the executable file with other services. If the COM+ Event System fails to load or initialize, the error is recorded into the Event Log. Windows 7 startup should proceed, but a message box is displayed informing you that the EventSystem service has failed to start.
Dependencies
COM+ Event System will not start, if the Remote Procedure Call (RPC) service is stopped or disabled.
If the COM+ Event System is stopped, the following services will not start and initialize:
- Background Intelligent Transfer Service
- COM+ System Application
- SPP Notification Service
- System Event Notification Service
Restore Default Startup Type of COM+ Event System
Automated Restore
1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.
2. Save the RestoreCOMEventSystemWindows7.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer to save changes.
Note. Make sure that the es.dll file exists in the %WinDir%\system32 folder. If this file is missing you can try to restore it from your Windows 7 installation media.