This article has been archived. It is offered "as is" and will no longer be updated.
Consider the following scenario:
On a Windows Vista-based computer, you are running a Media Center Markup Language (MCML)-based application.
You switch to another application. Therefore, the MCML-based application is in the backstack.
The ApplicationContext.ReturnToApplication method is called.
In this scenario, you do not return to the original instance of the MCML-based application as expected. Instead, a new instance of the MCML-based application is started. Therefore, the application consumes extra resources when you restart it. If the application consumes lots of extra resources, this issue may affect system performance.
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:
935791 How to obtain the latest Windows Vista service pack
A hotfix is available to resolve this problem. After you apply this hotfix, the MCML-based application returns to its original instance when the ApplicationContext.ReturnToApplication method is called. Therefore, the application does not consume extra resources when you restart it.
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.
No prerequisites are required.
You may have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other previously released hotfixes.
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.