You cannot access a WebDAV site whose SSL setting for client certificates is set to Accept if you cancel the Select Certificate dialog box on a computer that is running Windows Vista or Windows Server 2008
Currently, the SSL setting for client certificates on a Web
server can be configured to Ignore, to Accept, or to Require. When this setting is configured
to Accept, the server (WebDAV site) requires the client to send a certificate.
If the client does not have a certificate, the server and the client can
negotiate for other authentication mechanisms. However, a
WebDAV client that is running Windows Vista or a
Windows Server 2008 supports only
Ignore or Require for the SSL setting for client certificates. Therefore, when
the user who does not select a certificate tries to access the WebDAV site, the
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.
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.
To apply this hotfix, the computer must be running one of the following:
Windows Vista SP1
Windows Server 2008
You must restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other previously released
To use this hotfix, you do not have to make any changes to the
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
Windows Vista and Windows Server 2008 file information note
The files that apply to a specific product, milestone (RTM,
SPn) can be identified by examining the file version numbers as shown in the
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Windows Vista SP1 and Windows Server 2008 SP1
Service Pack 1 is integrated into Windows Server 2008.
Therefore, RTM milestone files apply only to Windows Vista. RTM milestone files
have a 6.0.0000.xxxxxx version number.
The MANIFEST files (.manifest) and MUM files (.mum) that are
installed for each environment are listed separately. MUM and MANIFEST files, and
the associated security catalog (.cat) files, are critical to maintaining the
state of the updated component. The security catalog files (attributes not
listed) are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Server 2008 and of Windows Vista
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For all supported x64-based versions of Windows Server 2008 and of Windows Vista