In Windows Vista, you may receive an error message that resembles the following when you configure the Media Center feature:You may also receive this error message when a scheduled Electronic Program Guide download occurs.

When this problem occurs, an error message that resembles the following may be logged in the Application log:

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This problem may occur when you modify the registry to use a custom program guide.

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Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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Hotfix information

To resolve this problem, apply the following hotfix. Then, edit the Windows Vista registry to preserve the settings for the custom program guide. For information about how to do this, see the "Registry information" section.

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

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
Mcupdate.exe	6.0.6000.20576	136,192	11-Apr-2007	06:34	x86
Update.mum	Not applicable	1,741	11-Apr-2007	14:24	Not applicable
X86_fe9b0d04c84bc7376940ee83f5e7088f_31bf3856ad364e35_6.0.6000.20576_none_fe08156ff8a46d7d.manifest	Not applicable	678	11-Apr-2007	14:24	Not applicable
X86_mcupdate_31bf3856ad364e35_6.0.6000.20576_none_c6fa7e60c7f8cec4.manifest	Not applicable	6,988	11-Apr-2007	14:26	Not applicable

Windows Vista, 64-bit versions

File name	File version	File size	Date	Time	Platform
Amd64_bc6d08c2f8ca2689e294ff1f9168cd78_31bf3856ad364e35_6.0.6000.20576_none_ce7501c4e2de09ff.manifest	Not applicable	682	11-Apr-2007	14:24	Not applicable
Amd64_mcupdate_31bf3856ad364e35_6.0.6000.20576_none_231919e480563ffa.manifest	Not applicable	7,006	11-Apr-2007	14:31	Not applicable
Mcupdate.exe	6.0.6000.20576	151,040	11-Apr-2007	07:47	x64
Update.mum	Not applicable	1,741	11-Apr-2007	14:24	Not applicable

Registry information

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

To preserve the settings for the custom program guide, set the disableUpdateDiscSvc registry entry to 1 after you apply this hotfix. To do this, follow these steps:

1.	Click Start, type regedit in the Start Search box, and then press ENTER.
2.	Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Currentversion\Media Center\Service\EPG\
3.	In the details pane, right-click disableUpdateDiscSvc, and then click Modify.
4.	In the Value data box, type 1, and then click OK.
5.	Exit Registry Editor.

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.

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Before you apply the hotfix package, one of the following scenarios may occur:

•	When the disableUpdateDiscSvc registry entry has a value of 1, the Windows Media Center Store Update Manager (Mcupdate.exe) may exit unexpectedly. You experience the problem that is described in the "Symptoms" section. In this scenario, McUpdate.exe does not modify the discSvc registry entry.
•	If the disableUpdateDiscSvc registry entry does not exist, or if the entry has a value of zero, Mcupdate.exe resets the discSvc entry to the default value. In this scenario, third-party electronic program guides may be disabled. Additionally, you may receive an error message that resembles the following: Invalid country or region

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

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