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FIX: A memory leak may occur when a custom user control in Silverlight is created and removed in Windows Embedded Compact 7

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Symptoms

Consider the following scenario:
  • You run an application in Windows Embedded Compact 7.
  • The application creates an instance of a custom user control in Silverlight for Windows Embedded.
  • You change the visual state of the user control.
  • You remove the user control.

In this scenario, a memory leak occurs. When this issue occurs for some time, the system may run out of memory.

Notes
  • The visual state is the way the user control appears in a particular state.
  • You can attach the Resource Leak Detector tool to the application to detect the memory leak.

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Resolution

Software update information

A supported software update is now available from Microsoft as Windows Embedded Compact 7 Monthly Update December 2011. In the "File information" section, the package file name contains the processor type.

Note This Windows Embedded Compact 7 Monthly Update is available for download from the following Microsoft Download Center website:
Windows Embedded Compact 7 Updates

Prerequisites

This update is supported only if all previously issued updates for this product have also been installed.

Restart requirement

After you apply this update, you must perform a clean build of the whole platform. To do this, use one of the following methods:
  • On the Build menu, click Clean Solution, and then click Build Solution.
  • On the Build menu, click Rebuild Solution.
You do not have to restart the computer after you apply this software update.

Update replacement information

This update does not replace any other updates.

File information

The English version of this software update package 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.

Files that are included in this update package
File nameFile sizeDateTimePath
Xamlruntimecore.def2,08101-Dec-201114:09Public\Common\Oak\Lib\Armv5\Checked
Xamlruntimecore.lib53,74801-Dec-201114:09Public\Common\Oak\Lib\Armv5\Checked
Xamlruntimecore.def2,08101-Dec-201114:07Public\Common\Oak\Lib\Armv5\Debug
Xamlruntimecore.lib53,74801-Dec-201114:07Public\Common\Oak\Lib\Armv5\Debug
Xamlruntimecore.def2,08101-Dec-201114:05Public\Common\Oak\Lib\Armv5\Retail
Xamlruntimecore.lib53,74801-Dec-201114:05Public\Common\Oak\Lib\Armv5\Retail
Xamlruntimecore.def2,08101-Dec-201114:28Public\Common\Oak\Lib\Armv6\Checked
Xamlruntimecore.lib53,74801-Dec-201114:28Public\Common\Oak\Lib\Armv6\Checked
Xamlruntimecore.def2,08101-Dec-201114:26Public\Common\Oak\Lib\Armv6\Debug
Xamlruntimecore.lib53,74801-Dec-201114:26Public\Common\Oak\Lib\Armv6\Debug
Xamlruntimecore.def2,08101-Dec-201114:25Public\Common\Oak\Lib\Armv6\Retail
Xamlruntimecore.lib53,74801-Dec-201114:25Public\Common\Oak\Lib\Armv6\Retail
Xamlruntimecore.def2,08101-Dec-201114:48Public\Common\Oak\Lib\Armv7\Checked
Xamlruntimecore.lib53,74801-Dec-201114:48Public\Common\Oak\Lib\Armv7\Checked
Xamlruntimecore.def2,08101-Dec-201114:46Public\Common\Oak\Lib\Armv7\Debug
Xamlruntimecore.lib53,74801-Dec-201114:46Public\Common\Oak\Lib\Armv7\Debug
Xamlruntimecore.def2,08101-Dec-201114:44Public\Common\Oak\Lib\Armv7\Retail
Xamlruntimecore.lib53,74801-Dec-201114:44Public\Common\Oak\Lib\Armv7\Retail
Xamlruntimecore.def2,08101-Dec-201115:06Public\Common\Oak\Lib\Mipsii\Checked
Xamlruntimecore.lib53,74801-Dec-201115:06Public\Common\Oak\Lib\Mipsii\Checked
Xamlruntimecore.def2,08101-Dec-201115:04Public\Common\Oak\Lib\Mipsii\Debug
Xamlruntimecore.lib53,74801-Dec-201115:04Public\Common\Oak\Lib\Mipsii\Debug
Xamlruntimecore.def2,08101-Dec-201115:02Public\Common\Oak\Lib\Mipsii\Retail
Xamlruntimecore.lib53,74801-Dec-201115:02Public\Common\Oak\Lib\Mipsii\Retail
Xamlruntimecore.def2,08101-Dec-201115:24Public\Common\Oak\Lib\Mipsii_fp\Checked
Xamlruntimecore.lib53,74801-Dec-201115:24Public\Common\Oak\Lib\Mipsii_fp\Checked
Xamlruntimecore.def2,08101-Dec-201115:22Public\Common\Oak\Lib\Mipsii_fp\Debug
Xamlruntimecore.lib53,74801-Dec-201115:22Public\Common\Oak\Lib\Mipsii_fp\Debug
Xamlruntimecore.def2,08101-Dec-201115:20Public\Common\Oak\Lib\Mipsii_fp\Retail
Xamlruntimecore.lib53,74801-Dec-201115:20Public\Common\Oak\Lib\Mipsii_fp\Retail
Xamlruntimecore.def2,08101-Dec-201115:41Public\Common\Oak\Lib\Sh4\Checked
Xamlruntimecore.lib54,04001-Dec-201115:41Public\Common\Oak\Lib\Sh4\Checked
Xamlruntimecore.def2,08101-Dec-201115:40Public\Common\Oak\Lib\Sh4\Debug
Xamlruntimecore.lib54,04001-Dec-201115:40Public\Common\Oak\Lib\Sh4\Debug
Xamlruntimecore.def2,08101-Dec-201115:38Public\Common\Oak\Lib\Sh4\Retail
Xamlruntimecore.lib54,04001-Dec-201115:38Public\Common\Oak\Lib\Sh4\Retail
Xamlruntimecore.def2,08101-Dec-201115:58Public\Common\Oak\Lib\X86\Checked
Xamlruntimecore.lib54,04001-Dec-201115:58Public\Common\Oak\Lib\X86\Checked
Xamlruntimecore.def2,08101-Dec-201115:56Public\Common\Oak\Lib\X86\Debug
Xamlruntimecore.lib54,04001-Dec-201115:56Public\Common\Oak\Lib\X86\Debug
Xamlruntimecore.def2,08101-Dec-201115:55Public\Common\Oak\Lib\X86\Retail
Xamlruntimecore.lib54,04001-Dec-201115:55Public\Common\Oak\Lib\X86\Retail
Xamlruntime.lib3,64201-Dec-201114:09Public\Common\Sdk\Lib\Armv5\Checked
Xamlruntime.lib3,64201-Dec-201114:07Public\Common\Sdk\Lib\Armv5\Debug
Xamlruntime.lib3,64201-Dec-201114:05Public\Common\Sdk\Lib\Armv5\Retail
Xamlruntime.lib3,64201-Dec-201114:28Public\Common\Sdk\Lib\Armv6\Checked
Xamlruntime.lib3,64201-Dec-201114:26Public\Common\Sdk\Lib\Armv6\Debug
Xamlruntime.lib3,64201-Dec-201114:25Public\Common\Sdk\Lib\Armv6\Retail
Xamlruntime.lib3,64201-Dec-201114:48Public\Common\Sdk\Lib\Armv7\Checked
Xamlruntime.lib3,64201-Dec-201114:46Public\Common\Sdk\Lib\Armv7\Debug
Xamlruntime.lib3,64201-Dec-201114:44Public\Common\Sdk\Lib\Armv7\Retail
Xamlruntime.lib3,64201-Dec-201115:06Public\Common\Sdk\Lib\Mipsii\Checked
Xamlruntime.lib3,64201-Dec-201115:04Public\Common\Sdk\Lib\Mipsii\Debug
Xamlruntime.lib3,64201-Dec-201115:02Public\Common\Sdk\Lib\Mipsii\Retail
Xamlruntime.lib3,64201-Dec-201115:24Public\Common\Sdk\Lib\Mipsii_fp\Checked
Xamlruntime.lib3,64201-Dec-201115:22Public\Common\Sdk\Lib\Mipsii_fp\Debug
Xamlruntime.lib3,64201-Dec-201115:20Public\Common\Sdk\Lib\Mipsii_fp\Retail
Xamlruntime.lib3,66401-Dec-201115:41Public\Common\Sdk\Lib\Sh4\Checked
Xamlruntime.lib3,66401-Dec-201115:40Public\Common\Sdk\Lib\Sh4\Debug
Xamlruntime.lib3,66401-Dec-201115:38Public\Common\Sdk\Lib\Sh4\Retail
Xamlruntime.lib3,66401-Dec-201115:58Public\Common\Sdk\Lib\X86\Checked
Xamlruntime.lib3,66401-Dec-201115:56Public\Common\Sdk\Lib\X86\Debug
Xamlruntime.lib3,66401-Dec-201115:55Public\Common\Sdk\Lib\X86\Retail

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References

For more information about how to create a custom user control, visit the following Microsoft Developer Network (MSDN) website:
Create a Custom User Control in Silverlight for Windows Embedded
For more information about the Resource Leak Detector, visit the following MSDN website:
Remote Resource Leak Detector (Windows Embedded Compact 7)
For more information about the visual state of a user control, visit the following MSDN website:
IXRVisualState (Windows Embedded Compact 7)
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

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Keywords: kbqfe, kbfix, kbnotautohotfix, kbpubtypekc, kbexpertiseinter, kb

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Article Info
Article ID : 2643047
Revision : 1
Created on : 1/7/2017
Published on : 1/10/2012
Exists online : False
Views : 216