You cannot access files that are shared on a Windows Embedded CE 6.0-based device from a computer that is running Windows Vista or Windows 7

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Some files are shared on a Windows Embedded CE 6.0-based device. The device supports the file server functionality. Additionally, the device uses the NTLM authentication protocol. In this case, you cannot access the shared files from a computer that is running Windows Vista or Windows 7. This problem occurs when the computer uses the default LAN Manager authentication level "Send NTLMv2 response only" in the network security settings.
This problem occurs because the NTLM APIs that are used for server-side authentication in Windows Embedded CE 6.0 do not completely comply with all the NTLMv2 requirements.

Software update information

A supported software update is now available from Microsoft as Windows CE 6.0 Platform Builder Monthly Update (April 2010). You can confirm this by scrolling to the "File information" section of this article. The package file name contains the product version, date, Knowledge Base article number, and processor type. The package file name format is:
Product version-yymmdd-kbnnnnnn-processor type
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 obtaining Windows CE Platform Builder and core operating system software updates:
837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products


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.

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.
File nameFile sizeDateTime
Windows embedded ce 6.0_update_kb981841.htm7,67916-Apr-201020:46
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about file server functionality, visit the following Microsoft Developer Network (MSDN) Web site: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

Article ID: 981841 - Last Review: 12/12/2015 03:56:41 - Revision: 4.0

Windows Embedded CE 6.0

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