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System Agent Does Not Function After Uninstalling Task Scheduler

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This article was previously published under Q172080

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Symptoms

After you uninstall Task Scheduler, the System Agent icon does not appear on the taskbar. If you attempt to start System Agent by using the Start menu, you may receive the following error message:
Cannot restart System Agent, reinstall MS Plus
In addition, when you start Windows 95, you may receive the following error message:
Essential file is missing on bootup
Sage.vxd

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Cause

This behavior can occur if you uninstall Task Scheduler. Task Scheduler replaces System Agent, but System Agent is not restored when you uninstall Task Scheduler.

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Resolution

To resolve this issue, reinstall System Agent. For information about reinstalling System Agent, please see the following article in the Microsoft Knowledge Base:
133191 Reinstalling System Agent Without Losing Scheduled Tasks

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More information

Task Scheduler is an Internet Explorer component that you can install using the Add/Remove Programs tool in Control Panel after Internet Explorer is installed.

For information about how to add or remove Internet Explorer components, see the following article in the Microsoft Knowledge Base:
171229 How to Add and Remove Internet Explorer Components

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Keywords: kberrmsg, KB172080

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Article Info
Article ID : 172080
Revision : 4
Created on : 11/1/2006
Published on : 11/1/2006
Exists online : False
Views : 375