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 the problem described in this
			 article. 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.
Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the �Hotfix Request� page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.
Prerequisites
 To apply this hotfix on Windows Vista-based client computers, you
		  must have Windows Vista Service Pack 1 (SP1) installed. 
		   For more information, click the following
			 article number to view the article in the Microsoft Knowledge Base: 
935791
 How to obtain the latest Windows Vista service pack
 No prerequisites are required for Windows Server
		  2008-based client computers. 
Notes- After you install the hotfix, certificates that have
				Microsoft EKU or client authentication EKU are allowed. 
- The hotfix described by this article only resolves the
				problem on the client. You must also install hotfix 959887 on the Windows
				Server 2008-based Kerberos Key Distribution Center (KDC) server to resolve the
				problem on the server. 
Restart requirement 
You must restart the 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 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 and Windows Server 2008 file information notes
The .manifest files and the .mum files that are installed in each
		  environment are 
listed
		  separately in the "Additional file information for Windows Server
		  2008 and for Windows Vista" section. These files and their associated .cat
		  (security catalog) files are critical to maintaining the state of the updated
		  component. The .cat files are signed with a Microsoft digital signature. The
		  attributes of these security files are not listed. 
For all supported 32-bit versions of Windows Server 2008 and  of Windows Vista
| File name | File version | File
				  size | Date | Time | Platform | 
|---|
| Smartcardcredentialprovider.dll | 6.0.6001.22265 | 134,656 | 13-Sep-2008 | 23:39 | x86 | 
For all supported 64-bit versions of Windows Server 2008 and of Windows Vista
| File name | File version | File
				  size | Date | Time | Platform | 
|---|
| Smartcardcredentialprovider.dll | 6.0.6001.22265 | 160,768 | 14-Sep-2008 | 00:58 | x64 | 
For all supported Itanium-based versions of Windows Server 2008 
| File name | File version | File
				  size | Date | Time | Platform | 
|---|
| Smartcardcredentialprovider.dll | 6.0.6001.22265 | 280,064 | 14-Sep-2008 | 00:02 | IA-64 |