COM+ System Application Service

Service Name	COMSysApp		Process Name		dllhost.exe
Default Settings	XP Home : Manual			XP Pro : Manual
Microsoft Service 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.
Dependencies	Remote Procedure Call (RPC)
Real World Description	Basically, this is the application that controls COM+ Event System. One of the support files that you'll probably never have any use for, but if you disable it, the warning notices you receive are worse than leaving it enabled. Disabling this service will generate Event Log entries noting it isn't running. An annoyance, but not harmful.
Is this service needed?	Possibly	Recommended Setting:				Manual
Note	Updated to reflect SP2 changes. The Manual setting avoids the Event Log entries. See COM+ Event System See System Event Notification Service

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- Reminder -

For many months now I've been posting a reminder about 'Patch Tuesday' or 'Second Tuesday' as it has come to be known when Microsoft releases the latest round of updates for Windows XP and other products.

If you're using a Microsoft operating system (and it's likely you are or you wouldn't be on this site) it's once again time to head for Windows Update for the latest round of Critical and Security updates.

As always, I strongly suggest you read about any update prior to installation, especially updates carrying a less than 'Critical' rating, and have a current system and data backup available in case it's necessary to restore the system to a pre-patch condition.

More info at Microsoft Security Bulletin Advance Notification

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The Elder Geek sites contain many articles and suggestions for modifying the Windows operating system. I've tried these tweaks and tips on many systems. Sometimes they work, sometimes not. The point is, ensure you have a current, tested backup of all system and data files and understand how to restore the system in case something goes very wrong. You can still yell at me, but I assume no responsibility for your actions and use of the information and disclaim any legal responsibility for any consequences of such actions.

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