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How to Start/Stop COM+ System Application service

Service name: COMSysApp

Display name: COM+ System Application


Description:

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.


Path to executable:

C:\WINDOWS\system32\dllhost.exe /Processid:{02D4B3F1-FD88-11D1-960D-00805FC79235}

CMD:
This method shows you how to Start/Stop COM+ System Application service from Command Prompt

Perform the following steps:

Please go to Start and click on the Type here to search

Type cmd, right click on cmd icon under the Programs and click on Run as administrator

Services Regedit CMD Msconfig

Please confirm User Account Control pop-up

Please select, right and copy a registry key from below, then right click on command prompt window, select Paste and press Enter


To Start COM+ System Application service:

net start COMSysApp

sc start COMSysApp


Note: You can’t start a service if Startup type is on Disabled.


To Stop COM+ System Application service:

net stop COMSysApp

sc stop COMSysApp


To change Startup type:

Automatic:

REG add "HKLM\SYSTEM\CurrentControlSet\PerfHost\COMSysApp" /v Start /t REG_DWORD /d 2 /f

sc config COMSysApp start= auto

Manual:

REG add "HKLM\SYSTEM\CurrentControlSet\services\COMSysApp" /v Start /t REG_DWORD /d 3 /f

sc config COMSysApp start= demand

Disabled:

REG add "HKLM\SYSTEM\CurrentControlSet\services\COMSysApp" /v Start /t REG_DWORD /d 4 /f

sc config COMSysApp start= disabled

Automatic (Delayed Start):

REG add "HKLM\SYSTEM\CurrentControlSet\services\COMSysApp" /v Start /t REG_DWORD /d 2 /f

sc config COMSysApp start= delayed-auto


Note: When you change to Automatic (Delayed Start) a new key DelayedAutostart is created with value 1.

REG add "HKLM\SYSTEM\CurrentControlSet\services\COMSysApp" /v DelayedAutostart /t REG_DWORD /d 1 /f


When you change to Automatic from Automatic (Delayed Start), DelayedAutostart change value to 0.

REG add "HKLM\SYSTEM\CurrentControlSet\services\COMSysApp" /v DelayedAutostart /t REG_DWORD /d 0 /f