The WebClient service does not send cookies in Windows

Symptoms

After you apply hotfix 2563214 , the WebClient service does not send persistent cookies for all requests in Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 Service Pack 1 (SP1). An example of the type of cookie that is not sent is a Forms Based Authentication (FBA) cookie.

The current behavior of this service to not to add cookies to a request until an HTTP status 401 or 403 response is received from the remote server. This can cause failures when you connect to or open an Explorer View connection to SharePoint servers that require FBA cookies for authentication.

The error symptoms vary by server configuration. When you try to access SharePoint server resources on the client, you may receive an error message that resembles the following:

Access Denied
Your Client does not support opening this list with Windows Explorer
A forms logon page rather than the desired content

This issue also occurs in Windows 8.1 or Windows Server 2012 R2.

Resolution

To resolve this issue in Windows 8.1 or Windows Server 2012 R2, install update rollup 2962409, or install the hotfix that is described in this article.
To resolve this issue in Windows 7 or Windows Server 2008 R2, install the hotfix that is described in this article.


Update information

For more information about update rollup 2962409, click the following article number to view the article in the Microsoft Knowledge Base:
2962409 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 update rollup: June 2014

Hotfix information

A supported hotfix is available from Microsoft Support. 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, go to the following Microsoft website: 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

To apply this hotfix, you must have Service Pack 1 for Windows 7 or Windows Server 2008 R2 installed.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.
File information

Workaround

To work around this problem, change the web server or interconnecting device to send a 401 or 403 HTTP status response if cookies are required.

Status

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

References

Learn about the terminology that Microsoft uses to describe software updates.
Properties

Article ID: 2936341 - Last Review: 10 Jun 2014 - Revision: 1

Windows 8.1 Enterprise, Windows 8.1, Windows 8.1 Pro, Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows Server 2012 R2 Standard, Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1

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