FIX: PEAP may not authenticate and the user is not prompted to renew a password if the password has expired in Windows CE .NET 4.2 (835950)


The information in this article applies to:

  • Microsoft Windows CE .NET 4.2

SYMPTOMS

In Microsoft Windows CE .NET 4.2, a roaming wireless client may not be able to authenticate by using the Protected Extensible Authentication Protocol (PEAP) after the password of the user has expired. Also, the user may not be prompted to renew the password.

RESOLUTION

Software update information

A supported software update is now available from Microsoft as Windows CE .NET 4.2 Core OS QFE 835950. 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

Prerequisites

This software update is supported only if all previously issued software updates for this product have also been installed. Also, to address the issue that is described in the "Symptoms" section, you must make code changes after you install this software update. For more information, see the "More Information" section.

Restart requirement

After you install 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 your computer after you apply this software update.

Software update replacement information

This software update does not replace any other software 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. 
   Date         Time   Version    Size     File name
   -------------------------------------------------------------------------------
   24-Apr-2004  00:21  4.2.4.423  834,296  Wincepb42-040423-kb835950-armv4.exe  
   24-Apr-2004  00:21  4.2.4.423  834,296  Wincepb42-040423-kb835950-armv4i.exe  
   24-Apr-2004  00:21  4.2.4.423  842,488  Wincepb42-040423-kb835950-mipsii.exe  
   24-Apr-2004  00:21  4.2.4.423  842,488  Wincepb42-040423-kb835950-mipsii_fp.exe  
   24-Apr-2004  00:21  4.2.4.423  846,584  Wincepb42-040423-kb835950-mipsiv.exe  
   24-Apr-2004  00:21  4.2.4.423  846,584  Wincepb42-040423-kb835950-mipsiv_fp.exe  
   24-Apr-2004  00:21  4.2.4.423  830,200  Wincepb42-040423-kb835950-sh3.exe  
   24-Apr-2004  00:21  4.2.4.423  830,200  Wincepb42-040423-kb835950-sh4.exe  
   24-Apr-2004  00:21  4.2.4.423  805,624  Wincepb42-040423-kb835950-x86.exe
The English version of this update 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 tool in Control Panel. 
   Date         Time   Size     File name
   -----------------------------------------

   Path: Public\Common\Oak\Inc
   24-Mar-2004  00:43   25,466  Netui.h

   Path: Public\Common\Oak\Lib\Armv4\Debug
   24-Mar-2004  00:41  132,472  Eapchap.lib
   24-Mar-2004  00:41  294,480  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Armv4\Retail
   24-Mar-2004  00:40  100,764  Eapchap.lib
   24-Mar-2004  00:41  223,776  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Armv4i\Debug
   24-Mar-2004  00:41  132,714  Eapchap.lib
   24-Mar-2004  00:41  294,896  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Armv4i\Retail
   24-Mar-2004  00:41  101,116  Eapchap.lib
   24-Mar-2004  00:41  224,400  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Mipsii\Debug
   24-Mar-2004  00:41  134,848  Eapchap.lib
   24-Mar-2004  00:41  301,746  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Mipsii\Retail
   24-Mar-2004  00:41  103,600  Eapchap.lib
   24-Mar-2004  00:41  231,204  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Mipsii_fp\Debug
   24-Mar-2004  00:41  134,886  Eapchap.lib
   24-Mar-2004  00:41  301,786  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Mipsii_fp\Retail
   24-Mar-2004  00:41  103,622  Eapchap.lib
   24-Mar-2004  00:41  231,274  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Mipsiv\Debug
   24-Mar-2004  00:41  136,696  Eapchap.lib
   24-Mar-2004  00:42  304,574  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Mipsiv\Retail
   24-Mar-2004  00:41  104,480  Eapchap.lib
   24-Mar-2004  00:42  232,304  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Mipsiv_fp\Debug
   24-Mar-2004  00:42  136,734  Eapchap.lib
   24-Mar-2004  00:42  304,614  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Mipsiv_fp\Retail
   24-Mar-2004  00:42  104,502  Eapchap.lib
   24-Mar-2004  00:42  232,374  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Sh3\Debug
   24-Mar-2004  00:42  124,602  Eapchap.lib
   24-Mar-2004  00:42  280,062  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Sh3\Retail
   24-Mar-2004  00:42   96,986  Eapchap.lib
   24-Mar-2004  00:42  220,022  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Sh4\Debug
   24-Mar-2004  00:42  124,506  Eapchap.lib
   24-Mar-2004  00:42  279,888  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\Sh4\Retail
   24-Mar-2004  00:42   96,862  Eapchap.lib
   24-Mar-2004  00:42  219,790  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\X86\Debug
   24-Mar-2004  00:40  116,718  Eapchap.lib
   24-Mar-2004  00:40  270,314  Ppp2auth.lib

   Path: Public\Common\Oak\Lib\X86\Retail
   24-Mar-2004  00:40   88,272  Eapchap.lib
   24-Mar-2004  00:40  203,732  Ppp2auth.lib

STATUS

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

MORE INFORMATION

This software update lets OEMs add a function that is called during PEAP authentication if the password of a user has expired. To use the functionality that is added by this software update, follow these steps:
  1. Add a function that is named GetNewPassword to the public netui module. You can find the signature for the GetNewPassword function in the updated Netui.h header file that is in this software update.
  2. In the GetNewPassword function, prompt the user for the new password. Then, pass the password as a Unicode string to the GetNewPassword function by using the pNewPwd parameter.
  3. Export the GetNewPassword function from the netui module.
Modification Type:MinorLast Reviewed:5/27/2005
Keywords:kbBug kbfix kbQFE KB835950 kbAudOEM
©2004 Microsoft Corporation. All rights reserved.