Ads

COM+ Event System

 

General Information

Visual Studio 6 Enterprise requires this service to be running as well as several other services listed in the dependency section.


Windows 8

Default Description

Supports System Event Notification Service (SENS), which provides automatic distribution of events to subscribing Component Object Model (COM) components. If the service is stopped, SENS will close and will not be able to provide logon and logoff notifications. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

None at this time.

Default Startup Type

OS SP0
Windows 8 x86 Automatic (Started)
Windows 8 x64 Automatic (Started)
Windows 8 Pro x86 Automatic (Started)
Windows 8 Pro x64 Automatic (Started)
Windows 8 Enterprise x86 Automatic (Started)
Windows 8 Enterprise x64 Automatic (Started)

Service Name (registry): EventSystem
Display Name: COM+ Event System

Default Path and Command Line Options

C:\Windows\system32\svchost.exe -k LocalService

Log On As

Account: Local Service

Dependencies

Note: No dependencies are listed for any service in the WDP build I used to draft this information.

Windows 7

Default Description

Supports System Event Notification Service (SENS), which provides automatic distribution of events to subscribing Component Object Model (COM) components. If the service is stopped, SENS will close and will not be able to provide logon and logoff notifications. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

None at this time.

Default Startup Type

OS SP0 SP1
Windows 7 Starter Automatic (Started) Automatic (Started)
Windows 7 Home Basic Automatic (Started) Automatic (Started)
Windows 7 Home Premium Automatic (Started) Automatic (Started)
Windows 7 Professional Automatic (Started) Automatic (Started)
Windows 7 Ultimate Automatic (Started) Automatic (Started)
Windows 7 Enterprise Automatic (Started) Automatic (Started)

Service Names

Service Name (registry): EventSystem
Display Name: COM+ Event System

Default Path and Command Line Options

C:\Windows\system32\svchost.exe -k LocalService

Log On As

Account: Local Service

Dependencies

What service COM+ Event System needs to function properly:

What other service require COM+ Event System to function properly:

Windows Vista

Default Description

Supports System Event Notification Service (SENS), which provides automatic distribution of events to subscribing Component Object Model (COM) components. If the service is stopped, SENS will close and will not be able to provide logon and logoff notifications. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

None at this time.

Default Startup Type

OS SP0 SP1 SP2
Vista Home Basic Automatic (Started) Automatic (Started) Automatic (Started)
Vista Home Premium Automatic (Started) Automatic (Started) Automatic (Started)
Vista Business Automatic (Started) Automatic (Started) Automatic (Started)
Vista Ultimate Automatic (Started) Automatic (Started) Automatic (Started)
Vista Enterprise Automatic (Started) Automatic (Started) Automatic (Started)

Service Names

Service Name (registry): EventSystem
Display Name: COM+ Event System

Default Path and Command Line Options

C:\Windows\system32\svchost.exe -k LocalService

Log On As

Account: Local Service

Dependencies

What service COM+ Event System needs to function properly:

What other service require COM+ Event System to function properly:

Windows XP Pro x64

Default Description

Supports System Event Notification Service (SENS), which provides automatic distribution of events to subscribing Component Object Model (COM) components. If the service is stopped, SENS will close and will not be able to provide logon and logoff notifications. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

You will receive, in the Event Log, an entry from “DCOM” complaining about not having this service running if disabled. If set to manual, many services report to it, so it will start anyway. This service is required for System Event Notification and Background Intelligent Transfer Service, which in turn, is required for Automatic Updates.

Used to check up to see if there is any critical or otherwise updates available for download. After the installation of Service Pack 1 or 2, you may configure how “often” updates are checked. Using default values, Windows XP “automatically” checks for updates at 3AM, downloads the updates and asks to “install” them. I do not recommend that you disable Automatic Updates.

It is very important that if you decide to disable this service, you check the Windows Update Version 6 web site often to ensure the latest patches install properly.

Take note: Manual updates via Windows Update Version 6 web site still requires Automatic Updates, Background Intelligent Transfer Service, <strong >COM+ Event System, Cryptographic Services, and Event Log to be running. Place all in automatic if you do not wish to update manually. In addition, I recommend that you change the default time of 3AM, for the automatic checking of updates, to a time when the system is “normally” on. Otherwise, Windows Update will check upon boot which may slow down the boot process.

For the fun of it, check:

“C:\Program Files\ComPlus Applications\”

On your system, see if you have any installed “COM+” Applications.

Take note: BootVis requires Task Scheduler and <strong >COM+ Event System to be running if you wish to take advantage of the “optimize system” function. Why is it required? It is due to the pre-fetching function built into Windows XP. Another Note: Pre-fetching only occurs on boot up and application start, so if you do not care about a few extra seconds of boot time, you may decide to not even bother with it and disable Task Scheduler. However, depending on the system and what applications are being used, pre-fetching may increase performance. Windows Media Player may also require this service for some “features” to function. MS’ .NET may require this service in the future.

Default Startup Type

OS SP0 SP1 SP2
XP Pro x64  ?  ? Automatic

Service Names

Service Name (registry): EventSystem
Display Name: COM+ Event System

Default Path and Command Line Options

C:\WINDOWS\system32\svchost.exe -k netsvcs

Log On As

Account: Local System Account

Dependencies

What service COM+ Event System needs to function properly:

What other service require COM+ Event System to function properly:

Windows XP

Default Description

Supports System Event Notification Service (SENS), which provides automatic distribution of events to subscribing Component Object Model (COM) components. If the service is stopped, SENS will close and will not be able to provide logon and logoff notifications. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

You will receive, in the Event Log, an entry from “DCOM” complaining about not having this service running if disabled. I am only aware of Visual Studio 6 Enterprise that uses COM+, but if set to manual, many services report to it, so it will start anyway. This service is required for System Event Notification. For the fun of it, check:

“C:\Program Files\ComPlus Applications\”

On your system, see if you have any installed “COM+” Applications.

Take note: BootVis requires Task Scheduler and <strong >COM+ Event System to be running if you wish to take advantage of the “optimize system” function. Why is it required? It is due to the pre-fetching function built into Windows XP. Another Note: Pre-fetching only occurs on boot up and application start, so if you do not care about a few extra seconds of boot time, you may decide to not even bother with it and disable Task Scheduler. However, depending on the system and what applications are being used, pre-fetching may increase performance. Windows Media Player may also require this service for some “features” to function. MS’ .NET may require this service.

Default Startup Type

OS SP0 SP1 SP2 SP3
XP Home Manual (Started) Manual (Started) Manual (Started) Manual (Started)
XP MCE 2005 Manual (Started) Manual (Started) Manual (Started) Manual (Started)
XP Pro Manual (Started) Manual (Started) Manual (Started) Manual (Started)
XP Tablet PC 2005 Manual (Started) Manual (Started) Manual (Started) Manual (Started)

Service Names

Service Name (registry): EventSystem
Display Name: COM+ Event System

Default Path and Command Line Options

C:\WINDOWS\system32\svchost.exe -k netsvcs

Log On As

Account: Local System Account

Dependencies

What service COM+ Event System needs to function properly:

What other service require COM+ Event System to function properly:

Additional Reading

None at this time.