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.
You will receive, in the Event Log, an entry from "DCOM" complaining about not having this service running if disabled. I am unaware of any application that uses COM+, but if set to manual, many services report to it, so it will start anyway. For the fun of it, check:
"C:\Program Files\ComPlus Applications"
On your system, see if you have any installed "COM+" Applications. If not, you can probably disable this service with no side effects (besides the Event Log complaining upon reboots). This service is required for System Event Notification.
Default XP Home: Manual
Default XP MCE 2005: Manual
Default XP Pro: Manual
Default XP Pro x64: Automatic
Default XP Tablet PC 2005: Manual
Safe Setting: Manual
Service Name (registry): COMSysApp
Display Name: COM+ System Application
C:\WINDOWS\system32\dllhost.exe
Account: Local System Account
What service COM+ System Application needs to function properly:
What other service require COM+ System Application to function properly:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\COMSysApp]
"Type"=dword:00000010
"Start"=dword:00000003
"ErrorControl"=dword:00000001
"DisplayName"="COM+ System Application"
"DependOnService"=hex(7):72,00,70,00,63,00,73,00,73,00,00,00,65,00,76,00,65,00,\
6e,00,74,00,73,00,79,00,73,00,74,00,65,00,6d,00,00,00,00,00
"DependOnGroup"=hex(7):00,00
"ObjectName"="LocalSystem"
"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."
"FailureActions"=hex:1e,00,00,00,00,00,00,00,00,00,00,00,03,00,00,00,65,00,6e,\
00,01,00,00,00,e8,03,00,00,01,00,00,00,88,13,00,00,00,00,00,00,e8,03,00,00
"Have you tweaked your OS lately?"
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Windows Service Configurations!
Includes explanations of each service and advice on which services you can safely disable!
Original content created: December 23, 2001
Most recent update: March 31, 2007
All content Copyright © 1999-2008 by Charles "Black Viper" Sparks. All Rights Reserved.