When you run Wusa.exe together with the /quiet option to try to install certain software packages on a Windows Vista-based computer, the installation fails. Additionally, you do not receive an error message. This problem occurs with packages that contain a custom software license agreement.

Note Security updates and other Windows Vista updates do not carry separate Microsoft Software License Terms and are therefore not affected by this problem.

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This problem occurs because Wusa.exe does not make the appropriate Windows Update Agent (WUA) API call that notifies the WUA that the package contains a custom software license agreement. Also, Wusa.exe does not notify the WUA that Windows Update can install the package without displaying the custom software license agreement.

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To resolve this problem, install update 929761. To install this update, visit the following Microsoft Web site:

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Update information

The following files are available for download from the Microsoft Download Center:

Windows Vista update

Download the 929761 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyID=0ddcc6f1-4aa1-4c2b-98fe-c32d283031ce&DisplayLang=en)

Windows Vista 64-bit update

Download the 929761 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyID=9d12ceeb-600f-48a5-a6fe-894ec161886b&DisplayLang=en)

Release Date: January 30, 2007

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Prerequisites

No prerequisites are required to apply this update.

Restart requirement

You have to restart your computer after you apply this update.

Update replacement information

This update does not replace any other updates.

File information

The English version of this update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista

File name	Version	Date	Time	Size
Wusa.exe	6.0.6000.16400	13-Dec-2006	02:49	135,680
Wusa.exe	6.0.6000.20496	13-Dec-2006	03:16	135,680

Windows Vista, 64-bit versions

File name	Version	Date	Time	Size	CPU
Wusa.exe	6.0.6000.16400	13-Dec-2006	03:19	141,312	x64
Wusa.exe	6.0.6000.20496	13-Dec-2006	03:51	141,312	x64
Wusa.exe	6.0.6000.16400	13-Dec-2006	02:49	135,680	x86
Wusa.exe	6.0.6000.20496	13-Dec-2006	03:16	135,680	x86

Note After you install this update, Wusa.exe assumes that you accept the custom software license agreement. Then, Wusa.exe continues the installation.

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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For more information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base: For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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