A memory leak occurs in the Wzcsvc.dll module when you re-enable Wi-Fi on a Windows Embedded CE 6.0-based device

Consider the following scenario:

• You enable Wi-Fi by using the Wi-Fi Protected Access 2 (WPA2) certification on a Windows Embedded CE 6.0-based device.
• You connect the device to a Wi-Fi access point.
• You perform one of the following operations:
  • You disable and then enable Wi-Fi.
  • You suspend and then resume the device.

In this scenario, a memory leak occurs in the Wzcsvc.dll module. Additionally, if you perform the operations frequently, you may receive an “Out of memory” error message and the operating system may become unstable.

This issue occurs because objects that are created when Wi-Fi is enabled are not deleted when Wi-Fi is disabled. This causes the memory leak.

Software update information

A supported software update is now available from Microsoft as Windows Embedded CE 6.0 Platform Builder Monthly Update (June 2010). You can confirm this by scrolling to the "File information" section. The package file name contains the product version, date, Knowledge Base article number, and processor type. The package file name format is as follows: For example: Wincepb50-060503-kb917590-armv4i.msi is the ARMV4i Windows CE 5.0 Platform Builder fix that is documented in KB article 917590 and that is contained in the May 2006 monthly update. To resolve this problem immediately, click the following article number for information about how to obtain Windows CE Platform Builder and core operating system software 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, and then click Build Platform.
• On the Build menu, click Rebuild Platform.

You do not have to restart the computer after you apply this software update.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

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.

Installer files

Files that are included in this hotfix package

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

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