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Description
A Hotfix is a product update package with one or more updated product files that fix a specific product problem.

IMPORTANT NOTE

Please be aware this Hotfix has not gone through full Microsoft product regression testing nor has it been tested in combination with other Hotfixes.

Please carefully review the associated Hotfix KB article to verify the fix is the one needed and there are no known compatibility or installation issues. You may also want to contact a Microsoft Support Professional at http://support.microsoft.com

Issue Description

When you use Windows Integrated Security, most HTTP-clients like Internet Explorer or System.Net.HttpWebRequest are using a Service Principal Name (SPN) of HTTP/<FQDN> (FQDN: Full Qualified Domain Name) for Kerberos authentication. Unlike Internet Explorer or System.Net/HttpWebRequest WCF clients are using a SPN with the format HOST/<FQDN>, thus using Kerberos can be problematic.

Fix:
This patch changes the default for WCF to match this HTTP SPN format from “HOST/<FQDN>” to “HTTP/<FQDN>”.

Additional Information about the issue resolved by this Hotfix can be found in its Knowledge Base article at http://support.microsoft.com/kb/980588

Additional Hotfixes
Search the list of all other publicly available Visual Studio and .NET Framework Hotfixes at http://archive.msdn.microsoft.com/Project/ProjectDirectory.aspx?TagName=Hotfix&ProjectSearchText=Hotfix*
Last edited Mar 24 2010 at 6:05 PM  by DDHotfix, version 2
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