FIX: A malformed IGMP packet may cause a Windows CE .NET 4.1-based device to stop processing network requests

A malformed Internet Group Management Protocol (IGMP) packet may cause a Microsoft Windows CE .NET 4.1-based device to stop processing network requests.

Software update information

A supported software update is now available from Microsoft as Windows CE 4.1 Platform Builder Monthly Update (December 2007). You can confirm this by viewing 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 been installed.

Restart requirement

After you apply this software update, you must perform a clean build of the whole platform. To clean the platform, click Clean on the Build menu. To build the platform, click Build Platform on the Build menu. 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 the later file attributes that are listed in the following table.



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.

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

For more information about the same problem that occurs on a Windows CE .NET 4.2-based device, click the following article number to view the article in the Microsoft Knowledge Base: For more information about the same problem that occurs on a Windows CE 5.0-based device, click the following article number to view the article in the Microsoft Knowledge Base: For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: