Article ID: 296743 - View products that this article applies to.
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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:
(http://support.microsoft.com/kb/256986/EN-US/ )Description of the Microsoft Windows Registry
When you set the Require Client Certificates option in Internet Information Server (IIS) version 5.0, to prompt users for a certificate selection each time they try to open a restricted folder from different Internet Explorer windows, the requirement seems to affect only the first client window that opens.
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/260910/EN-US/ )How to Obtain the Latest Windows 2000 Service Pack
Microsoft has confirmed that this is a problem in Microsoft Windows 2000. This problem was first corrected in Windows 2000 Service Pack 2.
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.
To manually change the default so that the system prompts the user for a certificate selection for each window, change the MultipleProcessClientCache registry value:
Article ID: 296743 - Last Review: October 23, 2013 - Revision: 4.3