Open Software Solutions

Consider the following scenario. On a computer that is running Windows Vista, you open the Sound item in Control Panel. Then, you open the Properties dialog box for an installed device that uses one of the following interface formats:

•	High-Definition Multimedia Interface (HDMI)
•	Sony/Philips Digital Interface (S/PDIF)

However, when you click the Supported Formats tab in the Properties dialog box for the device, you notice that all the check boxes are unexpectedly selected. For example, the following check boxes are selected:

•	DTS Audio
•	Dolby Digital
•	Microsoft WMA Audio
•	44.1 KHz
•	48.0 KHz
•	88.2 KHz
•	96.0 KHz
•	176.4 KHz
•	192.0 KHz

You experience this problem even though the following conditions are true:

•	You did not select all the check boxes.
•	The device does not support all these selected formats.

When this problem occurs, you may not receive sound from the device.

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This problem occurs in the following scenario:

1.	After you click the Supported Formats tab for the device, you click another tab in the Properties dialog box. Then, you click Cancel.
2.	You reopen the Properties dialog box for the device, and then you click the Supported Formats tab again.

In this scenario, the settings that were previously configured on the Supported Formats tab are not maintained. Windows Vista incorrectly selects all the check boxes.

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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:

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, x86-based versions

File name	File version	File size	Date	Time	Platform
Update.mum	Not Applicable	1,777	27-Mar-2007	10:48	Not Applicable
X86_ef0de3014ce6ec19287cab7af50b5e0c_31bf3856ad364e35_6.0.6000.20566_none_6e0ed9aa5ea8b5f9.manifest	Not Applicable	693	27-Mar-2007	10:48	Not Applicable
X86_microsoft-windows-mmsys_31bf3856ad364e35_6.0.6000.20566_none_5cd846cdfb4d7108.manifest	Not Applicable	14,698	27-Mar-2007	10:50	Not Applicable
8point1.wav	Not Applicable	1,228,100	07-Jan-2007	05:29	Not Applicable
Ac3.wav	Not Applicable	1,843,244	07-Jan-2007	05:29	Not Applicable
Dts.wav	Not Applicable	1,851,436	07-Jan-2007	05:29	Not Applicable
Mmsys.cpl	6.0.6000.20566	1,085,952	27-Mar-2007	01:45	Not Applicable
Wmapro.wav	Not Applicable	1,777,732	07-Jan-2007	05:29	Not Applicable

Windows Vista, 64-bit versions

File name	File version	File size	Date	Time	Platform
Amd64_852dee7dffae810d81f78ee6b19af29b_31bf3856ad364e35_6.0.6000.20566_none_0f44bb94e57ecd85.manifest	Not Applicable	1,036	27-Mar-2007	10:48	Not Applicable
Amd64_microsoft-windows-mmsys_31bf3856ad364e35_6.0.6000.20566_none_b8f6e251b3aae23e.manifest	Not Applicable	14,728	27-Mar-2007	10:55	Not Applicable
Update.mum	Not Applicable	2,000	27-Mar-2007	10:48	Not Applicable
Wow64_microsoft-windows-mmsys_31bf3856ad364e35_6.0.6000.20566_none_c34b8ca3e80ba439.manifest	Not Applicable	11,596	27-Mar-2007	10:55	Not Applicable
8point1.wav	Not Applicable	1,228,100	07-Jan-2007	05:29	Not Applicable
Ac3.wav	Not Applicable	1,843,244	07-Jan-2007	05:29	Not Applicable
Dts.wav	Not Applicable	1,851,436	07-Jan-2007	05:29	Not Applicable
Mmsys.cpl	6.0.6000.20566	1,045,504	27-Mar-2007	02:59	Not Applicable
Wmapro.wav	Not Applicable	1,777,732	07-Jan-2007	05:29	Not Applicable
8point1.wav	Not Applicable	1,228,100	07-Jan-2007	05:29	Not Applicable
Mmsys.cpl	6.0.6000.20566	1,085,952	27-Mar-2007	01:45	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:

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

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