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A certificate with a policy extension URL is not accepted by some programs in Windows Server 2003

View products that this article applies to.


When a certificate is issued by a certification authority (CA), and this certificate contains a URL that references the certification practice statement (CPS) as a policy extension to the certificate, the certificate may cause interoperability problems. For example, when a user or a computer tries to use a certificate that has a CPS URL policy extension, some programs do not accept the certificate.

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This problem occurs if the URL is encoded in Unicode format instead of in the standard IA5String format for X.509 certificates.

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Hotfix information

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


No prerequisites are required.

Restart requirement

You do not have to 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.

Windows Server 2003

   Date         Time   Version            Size    File name
   07-Jul-2004  22:50  5.2.3790.188      229,376  Certcli.dll     

Windows Server 2003, 64-Bit Edition

   Date         Time   Version            Size    File name
   07-Jul-2004  22:52  5.2.3790.188      599,552  Certcli.dll      IA-64
   07-Jul-2004  22:50  5.2.3790.188      229,376  Wcertcli.dll     x86

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

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More information

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

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Keywords: kbautohotfix, kbqfe, kbhotfixserver, kbbug, kbfix, kbwinserv2003presp1fix, KB872810

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Article Info
Article ID : 872810
Revision : 10
Created on : 7/24/2007
Published on : 7/24/2007
Exists online : False
Views : 1001