When you run an application that calls WinInet APIs and uses the Negotiate protocol which selects the NTLM authentication on a Windows Embedded CE 6.0-based device, your credentials do not work

You have an application that uses Windows Internet (WinInet) APIs to access Internet resources on a Windows Embedded CE 6.0-based device. The application uses the Negotiate protocol which selects the NTLM authentication. When you run the application, your credentials do not work. For example, when you use a user account to access a server that is running Microsoft Exchange Server 2010, you repeatedly receive the following error message:

This problem occurs because the security context is not maintained by the WinInet APIs. Therefore, the WinInet APIs accidentally close the socket on the Negotiate protocol.

Software update information

A supported software update is now available from Microsoft as Windows CE 6.0 Platform Builder Monthly Update (June 2009). 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: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:

Prerequisites

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

Restart requirement

After you apply this software 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.

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: