In addition to the subject message, the Application event log may contain:

Type: Information
Source: MsiInstaller
Category: None
Event ID: 11708
Date: MM/DD/YYYY
Time: HH:MM:SS
User: N/A
Computer: <Computer Name>
Description: Product: Microsoft Windows Update Auto Update -- Installation failed.


Type: Error
Source: MsiInstaller
Category: None
Event ID: 10000
Date: MM/DD/YYYY
Time: HH:MM:SS
User: N/A
Computer: <Computer Name>
Description: The description for Event ID ( 10000 ) in Source ( MsiInstaller ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. The following information is part of the event: Product: Microsoft Windows Update Auto Update -- Microsoft Windows Update Auto Update requires Windows 2000 SP2 or Windows XP.

If you attempt to install the Automatic Update Client on any of the following, you will experience this behavior because the Automatic Update Client is already installed:

Windows 2000 Professional Service Pack 3 (SP3) or later.
Windows 2000 Server SP3 or later.
Windows 2000 Advanced Server SP3 or later.
Windows XP Professional Service Pack 1 (SP1) or later.
Windows XP Home Edition SP1 or later.

NOTE: You can only install the Automatic Update Client on:

Windows 2000 Professional Service Pack 2 (SP2)
Windows 2000 Server SP2
Windows 2000 Advanced Server SP2
Windows XP Professional (without SP1)
Windows XP Home Edition (without SP1)

NOTE: See Automatic Update Client.

NOTE: See the following Microsoft Knowledge Base articles:

HOW TO: Configure and use Automatic Updates in Windows XP.

HOW TO: Configure and use Automatic Updates in Windows 2000.

Automatic Updates 2.2 client does not detect approved updates from Software Update Services.

How to force Automatic Updates 2.2 to perform a detection cycle.

How to configure Automatic Updates by using Group Policy or registry settings.