Consider the following scenario:

• On a Windows Vista-based computer, you create a connection security rule that uses a computer certificate.
• In this security rule, you enable the Accept health certificates only option.

In this scenario, the local-to-local connection is broken on the Windows Vista-based computer.

For example, assume that you start Internet Information Services (IIS) on the Windows Vista-based computer. When you try to connect to the local address by entering either "http://localhost" or the local IP address in Internet Explorer, you discover that the connection is broken.

Note This problem does not occur if the Accept health certificates only option is not enabled or if Kerberos authentication is used.

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.

Prerequisites

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

Registry information

To use this hotfix, you do not have to make any changes to the registry.

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 item in Control Panel.

Windows Vista, x86-based versions

Windows Vista, x64-based versions

Windows Vista, IA-64-based versions

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

The local-to-local connection forms include the following:

• 127.0.0.1 <-> 127.0.0.1
• ::1 <-> ::1
• local IPv4 <-> local IPv4
• local IPv6 <-> local IPv6
• link local IPv6 <-> link local IPv6

For these connections, a client application and a server application are installed on the same computer. These applications connect locally to the same IP address from one of their own IP addresses.

For more information about how to create a new connection security rule by using the "Windows Firewall with Advanced Security" snap-in, click the following article number to view the article in the Microsoft Knowledge Base: For more information, click the following article number to view the article in the Microsoft Knowledge Base: