batcmd.com Windows Vista Services

COM+ System Application - Windows Vista 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 and XP.

Startup Type

Windows Vista edition without SP SP1 SP2
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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:
  • SeAssignPrimaryTokenPrivilege
  • SeAuditPrivilege
  • SeChangeNotifyPrivilege
  • SeCreateGlobalPrivilege
  • SeDebugPrivilege
  • SeImpersonatePrivilege
  • SeIncreaseQuotaPrivilege

Default Behavior

COM+ System Application logs on as LocalSystem and runs in its own process of dllhost.exe. It does not share its process with other services. If COM+ System Application fails to start, the error is recorded into the Event Log. Windows Vista startup proceeds, but a message box is displayed informing you that the COMSysApp service has failed to start.

Dependencies

COM+ System Application won't start, if the following system components are stopped or disabled:

Restore Default Startup Type for COM+ System Application

Automated Restore

1. Select your Windows Vista edition and Service Pack, and then click on the Download button below.

2. Save the RestoreCOMSystemApplicationWindowsVista.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 Vista installation media.