FIX: Memory leak in a Silverlight for Windows Embedded app in a type VTYPE_BSTR custom control in Windows Embedded Compact 2013

Introduction

This article describes an issue that triggers a Silverlight for Windows Embedded application crash from a memory leak in a custom control of type VTYPE_BSTR in Windows Embedded Compact 2013. An update is available to resolve this issue. Before you install this update, all previously issued updates for this product must be installed.

Symptoms

You have a Silverlight for Windows Embedded application in Windows Embedded Compact 2013. If the application creates and registers a custom control as a custom dependency property of type VTYPE_BSTR, this may trigger a memory leak. Additionally, the memory leak may cause the application to crash.

Examples:

  • When the IXRCustomUserControl::GetPropertyValue() method is called, an XRValue is returned and sets the XRValue.shouldFreeValuePointer variable to False. This causes a break. If you set XRValue.shouldFreeValuePointer variable to True in your application, this causes a memory leak.

  • When the GetDependencyProperty method is called, an XRValue is returned and sets the XRValue.shouldFreeValuePointer variable to True. This causes a memory leak.


Software update information

Download information

Windows Embedded Compact 2013 Monthly Update (July 2015) is now available from Microsoft. To download this Windows Embedded Compact 2013 monthly update, go to Microsoft OEM Online or MyOEM.

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.

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 name

File size

Date

Time

Path

Xamlruntime_dt.dll

1,133,240

03-Aug-2015

09:31

Public\Common\Oak\Bin\I386

Xamlruntime.map

2,416,804

03-Aug-2015

09:40

Public\Common\Oak\Target\X86\Checked

Xamlruntime.rel

2,126,850

03-Aug-2015

09:40

Public\Common\Oak\Target\X86\Checked

Xamlruntime.dll

1,167,360

03-Aug-2015

09:40

Public\Common\Oak\Target\X86\Checked

Xamlruntime.map

1,373,903

03-Aug-2015

09:39

Public\Common\Oak\Target\X86\Retail

Xamlruntime.rel

1,679,264

03-Aug-2015

09:39

Public\Common\Oak\Target\X86\Retail

Xamlruntime.dll

806,912

03-Aug-2015

09:39

Public\Common\Oak\Target\X86\Retail

Xamlruntime.map

2,584,916

03-Aug-2015

09:39

Public\Common\Oak\Target\X86\Debug

Xamlruntime.rel

2,339,333

03-Aug-2015

09:39

Public\Common\Oak\Target\X86\Debug

Xamlruntime.dll

1,687,552

03-Aug-2015

09:39

Public\Common\Oak\Target\X86\Debug

Xamlruntime.map

5,667,735

03-Aug-2015

09:40

Public\Common\Oak\Target\Armv7\Checked

Xamlruntime.rel

2,125,893

03-Aug-2015

09:40

Public\Common\Oak\Target\Armv7\Checked

Xamlruntime.dll

1,228,800

03-Aug-2015

09:40

Public\Common\Oak\Target\Armv7\Checked

Xamlruntime.map

2,422,252

03-Aug-2015

09:40

Public\Common\Oak\Target\Armv7\Retail

Xamlruntime.rel

1,444,016

03-Aug-2015

09:40

Public\Common\Oak\Target\Armv7\Retail

Xamlruntime.dll

765,952

03-Aug-2015

09:40

Public\Common\Oak\Target\Armv7\Retail

Xamlruntime.map

9,765,731

03-Aug-2015

09:39

Public\Common\Oak\Target\Armv7\Debug

Xamlruntime.rel

2,121,746

03-Aug-2015

09:39

Public\Common\Oak\Target\Armv7\Debug

Xamlruntime.dll

1,773,568

03-Aug-2015

09:39

Public\Common\Oak\Target\Armv7\Debug

Xamlruntime_dt.dll

1,133,240

03-Aug-2015

09:31

Program files\Microsoft visual studio 11.0\Vc\Vcwizards\Windowsembeddedxamltools


Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

Learn about the terminology that Microsoft uses to describe software updates.

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