System Event Notification Service - Windows 7 Service
Monitors system events and notifies subscribers to COM+ Event System of these events.
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: | System Event Notification Service |
| Service name: | SENS |
| Type: | share |
| Path: | %WinDir%\system32\svchost.exe -k netsvcs |
| File: | %WinDir%\System32\sens.dll |
| Error control: | normal |
| Group: | ProfSvc_Group |
| Object: | LocalSystem |
| Privileges: |
|
Default Behavior
The System Event Notification Service runs as LocalSystem in a shared process. It shares the executable file with other services. If the System Event Notification Service 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 SENS service has failed to start.
Dependencies
System Event Notification Service will not start, if the COM+ Event System service is stopped or disabled.
If the System Event Notification Service is stopped, the COM+ System Application fails to start and initialize.
Restore Default Startup Type of System Event Notification Service
Automated Restore
1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.
2. Save the RestoreSystemEventNotificationServiceWindows7.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 sens.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.