Client Certificate Mapping Uses Multiple Organization Units

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Article ID: 197461
This article was previously published under Q197461
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Symptoms

When you attempt to use a Client Certificate with multiple subject Organization Unit (OU) fields, Internet Information Server (IIS) may not read the certificate as expected.

Cause

IIS does not read more than the first field of Subject OUs for some non- Certificate Server certificate formats.

For example, if the Subject OU line contains multiple entries delimited by semicolons, IIS will not recognize any entries beyond the first semicolon.

In the following example, Internet Information Server would detect My Company, but not Level 1 or Level 2:
My Company; Level 1; Level 2

Resolution

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack

Status

Microsoft has confirmed this to be a problem in Internet Information Server version 4.0. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

More information

For additional information on Certificate Server and Client Certificate Mapping, see the Windows NT Option Pack for the following online documentation:
   SSL Client Certificate Authentication
   Microsoft Internet Information Server
   Server Administration
   Security
   Authentication
   About Authentication
   Obtaining Client Certificate Information with ASP
   Mapping Client Certificates to User Accounts
				
For additional information, click the article number below to view the article in the Microsoft Knowledge Base:
190157 Support for Windows NT 4.0 Option Pack on Terminal Server

Properties

Article ID: 197461 - Last Review: October 26, 2013 - Revision: 5.0
Keywords: 
kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kbfix KB197461

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