Article ID: 2586448 - Last Review: February 21, 2012 - Revision: 3.1

MS11-081: Cumulative Security Update for Internet Explorer: October 11, 2011

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Notice

The update that this article describes has been replaced by a newer update. To resolve this problem, install the most current cumulative security update for Internet Explorer. To install the most current update, visit the following Microsoft website:

http://update.microsoft.com/microsoftupdate (http://update.microsoft.com/microsoftupdate)

For more technical information about the most current cumulative security update for Internet Explorer, visit the following Microsoft website:

http://www.microsoft.com/technet/security/current.aspx (http://www.microsoft.com/technet/security/current.aspx)

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Introduction

Microsoft has released security bulletin MS11-081. To view the complete security bulletin, visit one of the following Microsoft websites:

Home users:
http://www.microsoft.com/security/pc-security/bulletins/201110.aspx (http://www.microsoft.com/security/pc-security/bulletins/201110.aspx)
Skip the details: Download the updates for your home computer or for your laptop from the Microsoft Update Website now:
http://update.microsoft.com/microsoftupdate (http://update.microsoft.com/microsoftupdate)
IT professionals:
http://technet.microsoft.com/security/bulletin/MS11-081 (http://technet.microsoft.com/security/bulletin/MS11-081)

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How to obtain help and support for this security update

For home users, no-charge support is available by calling (866) PCSAFETY in the United States and Canada or by contacting your local Microsoft subsidiary. For more information about how to contact your local Microsoft subsidiary for support issues with security updates, visit the Microsoft International Support website:

http://support.microsoft.com/common/international.aspx?rdpath=4 (http://support.microsoft.com/common/international.aspx?rdpath=4)

North American customers can also obtain instant access to unlimited no-charge email support or to unlimited individual chat support by visiting the following Microsoft website:

http://support.microsoft.com/oas/default.aspx?&prid=7552 (http://support.microsoft.com/oas/default.aspx?&prid=7552)

For enterprise customers, support for security updates is available through your usual support contacts.

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MORE INFORMATION

Known issues with this security update

After you install this security update, some drop-down lists and combo boxes do not appear in Internet Explorer 7.

If a webpage hosts another webpage that is in a different domain, and the hosted webpage has window restrictions enabled (default configuration) and contains a select control such as list or combo box when the hosting page tries to display the combo box or drop-down value from the hosted page, the combo box or list is not displayed.

For more information about this problem, click the following article number to view the article in the Microsoft Knowledge Base:

2628724 (http://support.microsoft.com/kb/2628724/ ) Some drop-down lists and combo boxes do not appear in Internet Explorer 7 after you install security update 2586448

To resolve this problem, install security update 2618444. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

2618444 (http://support.microsoft.com/kb/2618444/ ) MS11-099: Cumulative Security Update for Internet Explorer: December 13, 2011

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Non-security-related fixes that are included in this security update

General distribution release (GDR) fixes

Individual updates may not be installed, depending on the version of Windows and the version of the affected application. Please view the individual articles to determine your update status.

Collapse this tableExpand this table

Article number	Article title
2575790 (http://support.microsoft.com/kb/2575790/ )	Internet Explorer 9 displays a password mask character for Japanese characters that is too large for a password entry box
2607445 (http://support.microsoft.com/kb/2607445/ )	Download content is lost after you click the gold information bar to confirm a file download in Internet Explorer 8
2601307 (http://support.microsoft.com/kb/2601307/ )	Navigation fails when you click a link that uses a custom pluggable protocol to browse to a secure site in Internet Explorer 9
2601254 (http://support.microsoft.com/kb/2601254/ )	The IHTMLEventObj::put_keyCode property does not work in Internet Explorer 9 Standards mode
2601253 (http://support.microsoft.com/kb/2601253/ )	You cannot change the font size in Windows Live Mail or in Windows Mail after you install Internet Explorer 9
2600932 (http://support.microsoft.com/kb/2600932/ )	An application that uses the web browser control in Internet Explorer may crash
2534550 (http://support.microsoft.com/kb/2534550/ )	The window.createPopup method to create a modal window does not work with protected mode enabled in Internet Explorer 8
2515657 (http://support.microsoft.com/kb/2515657/ )	Windows 7 gadgets may not work or be displayed correctly

Hotfixes

Security update 2586448 packages for Windows XP and for Windows Server 2003 include Internet Explorer hotfix files and general distribution release (GDR) files. If no existing Internet Explorer files are from the hotfix environment, security update 2586448 installs the GDR files.

Hotfixes are intended to correct only the problems that are described in the Microsoft Knowledge Base articles that are associated with the hotfixes. Apply hotfixes only to systems that are experiencing these specific problems.

These hotfixes may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains these hotfixes. For more information about how to install the hotfixes that are included in security update 2586448, click the following article number to view the article in the Microsoft Knowledge Base:

897225 (http://support.microsoft.com/kb/897225/ ) How to install hotfixes that are included in cumulative security updates for Internet Explorer

Note In addition to installing hotfix files, review the Microsoft Knowledge Base article that is associated with the specific hotfix that you have to install to determine the registry modification that is required to enable that specific hotfix.

For more information about how to determine whether your existing Internet Explorer files are from the hotfix or from the GDR environment, click the following article number to view the article in the Microsoft Knowledge Base:

824994 (http://support.microsoft.com/kb/824994/ ) Description of the contents of Windows XP Service Pack 2 and Windows Server 2003 software update packages

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File Information

For a list of files that are provided within these packages, click the following link:

File attributes tables for security update 2586448.csv (http://download.microsoft.com/download/5/A/4/5A4112BB-1C53-4BC6-B4F9-020EFB1AEEB5/File attributes tables for security update 2586448.csv)

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How to determine whether you are running a 32-bit or a 64-bit edition of Windows

If you are not sure which version of Windows that you are running or whether it is a 32-bit version or 64-bit version, open System Information (Msinfo32.exe), and review the value that is listed for System Type. To do this, follow these steps:

Click Start, and then click Run, or click Start Search.
Type msinfo32.exe, and then press Enter.
In System Information, review the value for System Type.
- For 32-bit editions of Windows, the System Type value is x86-based PC.
- For 64-bit editions of Windows, the System Type value is x64-based PC.

For more information about how to determine whether you are running a 32-bit or 64-bit edition of Windows, click the following article number to view the article in the Microsoft Knowledge Base:

827218 (http://support.microsoft.com/kb/827218/ ) How to determine whether a computer is running a 32-bit version or a 64-bit version of the Windows operating system

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