COM+ System Application - Windows 10 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 11, 8, Vista and XP.
Startup Type
| Windows 10 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 1507 | Manual | Manual | Manual | Manual |
| 1511 | Manual | Manual | Manual | Manual |
| 1607 | Manual | Manual | Manual | Manual |
| 1703 | Manual | Manual | Manual | Manual |
| 1709 | Manual | Manual | Manual | Manual |
| 1803 | Manual | Manual | Manual | Manual |
| 1809 | Manual | Manual | Manual | Manual |
| 1903 | Manual | Manual | Manual | Manual |
| 1909 | Manual | Manual | Manual | Manual |
| 2004 | Manual | Manual | Manual | Manual |
| 20H2 | Manual | Manual | Manual | Manual |
| 21H1 | Manual | Manual | Manual | Manual |
| 21H2 | Manual | Manual | Manual | Manual |
| 22H2 | 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 10 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 of COM+ System Application
Automated Restore
1. Select your Windows 10 edition and release, and then click on the Download button below.
2. Save the RestoreCOMSystemApplicationWindows10.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 dllhost.exe file exists in the %WinDir%\system32 folder. If this file is missing you can try to restore it from your Windows 10 installation media.