COM+ System Application - Windows 11 Service
Manages the configuration and tracking of Component Object Model (COM)+-based components. If the service is stopped, most COM+-based components will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start.
This service also exists in Windows 10, 7, 8, Vista and XP.
Startup Type
| Windows 11 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 21H2 | Manual | Manual | Manual | Manual |
| 22H2 | Manual | Manual | Manual | Manual |
| 23H2 | Manual | Manual | Manual | Manual |
| 24H2 | Manual | Manual | Manual | Manual |
Default Properties
| Display name: | COM+ System Application |
| Service name: | COMSysApp |
| Type: | own |
| Path: | %WinDir%\system32\dllhost.exe /Processid:{02D4B3F1-FD88-11D1-960D-00805FC79235} |
| Error control: | normal |
| Object: | LocalSystem |
| Privileges: |
|
Default Behavior
The COM+ System Application service is running as LocalSystem in its own process of dllhost.exe. It doesn't share its process with other services. If COM+ System Application fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the COMSysApp service has failed to start.
Dependencies
COM+ System Application is unable to start, if at least one of the following services is stopped or disabled:
Restore Default Startup Type for COM+ System Application
Automated Restore
1. Select your Windows 11 edition and release, and then click on the Download button below.
2. Save the RestoreCOMSystemApplicationWindows11.bat file to any folder on a local drive such as SSD or a hard disk.
3. Right-click the downloaded batch file and select Properties.
4. Check the Unblock checkbox and click OK.
5. Right-click the batch file again and select Run as administrator.
6. Restart the computer to save changes.
Note. Make sure that the dllhost.exe file exists in the %WinDir%\system32 folder. If this file is missing you can try to restore it from your Windows 11 installation media.