Open Software Solutions

You run the Windows Experience Index (WEI) to measure the capability of the hardware and software configuration on a Windows Vista-based computer. After you do this, the score for 3D business and gaming graphics performance may not accurately represent the actual performance of the gaming graphics. For example, the actual performance of the gaming graphics may be less than you expect, based on the WEI score.

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This problem occurs because the algorithm that is used by WEI mistakenly attaches too much importance to memory bandwidth. This behavior causes misaligned scores, especially for low-end graphics products.

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Hotfix information

A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

Prerequisites

No prerequisites are required.

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English version of this hotfix 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, 32-bit versions

File name	File version	File size	Date	Time	Platform
Shadercache.ps_2_0	Not Applicable	7,401,896	07-Jan-2007	05:53	Not Applicable
Shadercache.vs_1_1	Not Applicable	11,276,832	07-Jan-2007	05:53	Not Applicable
Update.mum	Not Applicable	2,468	19-Jun-2007	13:35	Not Applicable
Winsat.exe	6.0.6000.20622	3,217,408	19-Jun-2007	00:55	x86
Winsat.prx	Not Applicable	3,922	07-Jan-2007	05:53	Not Applicable
X86_0f3e10ded5608294c741ff0fe9c5bc0d_31bf3856ad364e35_6.0.6000.20622_none_5504cd7978f34153.manifest	Not Applicable	718	19-Jun-2007	13:35	Not Applicable
X86_8dd0cb3b59c76a01b5fc507ff6f3b50f_31bf3856ad364e35_6.0.6000.20622_none_d6bf9e22559a798d.manifest	Not Applicable	715	19-Jun-2007	13:35	Not Applicable
X86_microsoft-windows-w..emassessmenttoolapi_31bf3856ad364e35_6.0.6000.20622_none_e22e1f15139fe008.manifest	Not Applicable	17,351	19-Jun-2007	13:38	Not Applicable
X86_microsoft-windows-w..ystemassessmenttool_31bf3856ad364e35_6.0.6000.20622_none_7a24b4d3d35f753c.manifest	Not Applicable	14,160	19-Jun-2007	13:38	Not Applicable
Winsat.mof	Not Applicable	1,545	07-Jan-2007	05:52	Not Applicable
Winsatapi.dll	6.0.6000.20622	386,560	19-Jun-2007	02:06	x86
Winsatuninstall.mof	Not Applicable	487	07-Jan-2007	05:52	Not Applicable

Windows Vista, 64-bit versions

File name	File version	File size	Date	Time	Platform
Amd64_545edf3ad8c0d480e678747841f97de8_31bf3856ad364e35_6.0.6000.20622_none_9815a22958722277.manifest	Not Applicable	719	19-Jun-2007	13:35	Not Applicable
Amd64_cc76cba241eb8da09f77a08591eedf49_31bf3856ad364e35_6.0.6000.20622_none_50faa2dd0eab51eb.manifest	Not Applicable	1,084	19-Jun-2007	13:35	Not Applicable
Amd64_microsoft-windows-w..emassessmenttoolapi_31bf3856ad364e35_6.0.6000.20622_none_3e4cba98cbfd513e.manifest	Not Applicable	17,381	19-Jun-2007	13:42	Not Applicable
Amd64_microsoft-windows-w..ystemassessmenttool_31bf3856ad364e35_6.0.6000.20622_none_d64350578bbce672.manifest	Not Applicable	14,470	19-Jun-2007	13:42	Not Applicable
Shadercache.ps_2_0	Not Applicable	7,401,896	07-Jan-2007	05:53	Not Applicable
Shadercache.vs_1_1	Not Applicable	11,276,832	07-Jan-2007	05:53	Not Applicable
Update.mum	Not Applicable	2,468	19-Jun-2007	13:35	Not Applicable
Winsat.exe	6.0.6000.20622	3,891,200	19-Jun-2007	01:19	x64
Winsat.prx	Not Applicable	3,922	07-Jan-2007	05:53	Not Applicable
Winsat.mof	Not Applicable	1,545	07-Jan-2007	05:52	Not Applicable
Winsatapi.dll	6.0.6000.20622	450,048	19-Jun-2007	03:15	x64
Winsatuninstall.mof	Not Applicable	487	07-Jan-2007	05:52	Not Applicable

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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, click the following article number to view the article in the Microsoft Knowledge Base:

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