Microsoft KB Archive/890326

= Client certificates that contain the Key Usage (KU) extension may not be displayed or may be incorrectly displayed when you connect to a secure Web site in Internet Explorer 6 Service Pack 1 =

Article ID: 890326

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft Internet Explorer 6.0 Service Pack 1

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Important This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry



SYMPTOMS
When a user connects to your secure Web site by using https:// in Microsoft Internet Explorer 6, and your Web server requires client authentication, one of the following symptoms may occur:
 * Client certificates that contain the Key Usage (KU) extension may not be displayed.
 * Client certificates that contain the Key Usage (KU) extension are displayed when they should not be displayed.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
There are no prerequisites required to install this hotfix.

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

Additional information
After you install this hotfix, you can customize the filtering of the list of client certificates. To do this, follow these steps.

Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.  Quit Internet Explorer. Click Start, click Run, type regedit, and then click OK. Locate and then click to select one of the following registry subkeys:

'''

 '''

 After you select the subkey that is specified in step 3, on the Edit menu, point to New, and then click Key. Type FEATURE_CLIENTAUTHCERTFILTER, and then press ENTER. Right-click FEATURE_CLIENTAUTHCERTFILTER, point to New, and then click DWORD Value. Type Iexplore.exe, and then press ENTER.</li> Right-click Iexplore.exe, and then click Modify.</li> In the Value data box, type one of the values in the following table, and then click OK.

811383 Internet Explorer connectivity and certificate display issues

</li> Quit Registry Editor.</li></ol>

File information
The English version of this hotfix 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. <pre class="fixed_text">  Date         Time   Version        Size     File name ---  14-Jan-2005  17:21  6.0.2800.1489  581,632  Wininet.dll

<div class="status_section">

STATUS
Microsoft has confirmed that this is a problem in Microsoft Internet Explorer 6.

Additional query words: ie6 ie6.0 ssl tls

Keywords: kbhotfixserver kbqfe kbie600sp2fix kbie600presp2fix kbfix kbbug KB890326

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