Consider the following scenario:

• On a computer that has Internet Explorer 7 installed, you apply the Internet Explorer Maintenance Group Policy settings to add a pop-up blocker exception site.
• In the Internet Options dialog box, you manually add a new pop-up blocker exception site.
• You reapply the Group Policy settings on the computer.

In this scenario, you the new pop-up blocker exception site that you manually added in the Internet Options dialog box is missing from this dialog box.

Note This problem does not occur on computers that have Internet Explorer 6 installed.

Security update information

To resolve this problem, install the most current cumulative security update for Internet Explorer. To install the most current updates, visit the following Microsoft Web site: For more technical information about the most current cumulative security update for Internet Explorer, visit the following Microsoft Web site: Note This update was first included in security update 963027 (MS09-014). For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Hotfix information

Windows Vista

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 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.

Prerequisites

No prerequisites are required.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released 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, x86-based versions

Windows Server 2003

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 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.

Prerequisites

To apply this hotfix, you must have Windows Server 2003 SP2 installed on the computer.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released 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 Server 2003 with Service Pack 2, x86-based versions

Windows XP

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 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.

Prerequisites

To apply this hotfix, you must have Windows XP SP2 installed on the computer.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released 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 XP with Service Pack 2, x86-based versions

Post-installation information

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: After you apply this hotfix on a 32-bit operating system, you must edit the registry to enable the hotfix. To do this, follow these steps:

1. Click Start, click Run, type regedit, and then click OK.
   
   Note On a Windows Vista-based computer, click Start
   Collapse this imageExpand this image

   
   , type regedit in the Start Search box, and then press ENTER.
2. Locate and then click the following registry subkey:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl
3. On the Edit menu, point to New, and then click Key.
4. Type FEATURE_IEM_POPUP_BLOCKER_USER_ALLOW_KB944520, and then press ENTER.
5. On the Edit menu, point to New, and then click DWORD Value.
6. Type *, and then press ENTER.
7. On the Edit menu, click Modify.
8. In the Value data box, type 1, and then click OK.
9. Exit Registry Editor.

After you apply this hotfix on a 64-bit operating system, you must edit the registry to enable the hotfix. To do this, follow these steps:

1. Click Start, click Run, type regedit, and then click OK.
   
   Note On a Windows Vista-based computer, click Start
   Collapse this imageExpand this image

   
   , type regedit in the Start Search box, and then press ENTER.
2. Locate and then click the following registry subkey:
   HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\Main\FeatureControl
3. On the Edit menu, point to New, and then click Key.
4. Type FEATURE_IEM_POPUP_BLOCKER_USER_ALLOW_KB944520, and then press ENTER.
5. On the Edit menu, point to New, and then click DWORD Value.
6. Type *, and then press ENTER.
7. On the Edit menu, click Modify.
8. In the Value data box, type 1, and then click OK.
9. Locate and then click the following registry subkey:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl
10. On the Edit menu, point to New, and then click Key.
11. Type FEATURE_IEM_POPUP_BLOCKER_USER_ALLOW_KB944520, and then press ENTER.
12. On the Edit menu, point to New, and then click DWORD Value.
13. Type *, and then press ENTER.
14. On the Edit menu, click Modify.
15. In the Value data box, type 1, and then click OK.
16. Exit Registry Editor.

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

Steps to reproduce the problem

1. In the Local Group Policy Editor, configure the Internet Explorer Maintenance Group Policy settings to add a pop-up blocker exception site and a trusted site.
2. Refresh the Group Policy settings.
3. Make sure that the trusted site and the pop-up blocker exception site have been added successfully.
4. In the Internet Options dialog box, manually add a new trusted site and a new pop-up blocker exception site.
5. Refresh the Group Policy settings.
   
   Notice that the new pop-up blocker exception site that you added in step 4 does not appear. However, the new trusted site that is added in step 4 appears as expected.

For more information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base: