Microsoft KB Archive/838645

= FIX: You receive an HTTP 401.2 error message when you use SSL client certificate mapping =

Article ID: 838645

Article Last Modified on 11/21/2006

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APPLIES TO


 * Microsoft Internet Information Services 5.0

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SYMPTOMS
You have a Web site that has a virtual directory that is configured to use only Secure Sockets Layer (SSL) client certificate mapping. The content in that virtual directory has links to content in another virtual directory that is configured to use only Anonymous authentication. You receive the following error message every other time that a page is requested:

HTTP 401.2 - Unauthorized: Logon failed due to server configuration

Internet Information Services



Hotfix Information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
No prerequisites are required.

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

Hotfix Replacement Information
This hotfix does not replace any other hotfixes.

File Information
The English version of this hotfix has the file attributes (or later) 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   Version            Size    File name --  26-Mar-2004  03:17  5.0.2195.6899     337,168  Asp.dll 26-Mar-2004 03:17  5.0.2195.6824     299,792  Fscfg.dll 26-Mar-2004 03:17  5.0.2195.6824       8,464  Ftpctrs2.dll 26-Mar-2004 03:17  5.0.2195.6824       6,416  Ftpmib.dll 26-Mar-2004 03:17  5.0.2195.6824       9,488  Httpmib.dll 26-Mar-2004 03:17  5.0.2195.6896      13,584  Infoadmn.dll 26-Mar-2004 03:17  5.0.2195.6896     248,080  Infocomm.dll 26-Mar-2004 03:17  5.0.2195.6896      62,736  Isatq.dll 26-Mar-2004 03:17  5.0.2195.6824       7,440  W3ctrs.dll 26-Mar-2004 03:17  5.0.2195.6901     349,968  W3svc.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.

