Microsoft KB Archive/907301

= The Wininet.dll file does not handle redirection from an HTTPS URL to an HTTP URL in Windows XP with Service Pack 2 =

Article ID: 907301

Article Last Modified on 11/15/2007

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APPLIES TO

 Microsoft Internet Explorer 6.0, when used with:  Microsoft Windows XP Service Pack 2

 Microsoft Windows XP Service Pack 2

 Microsoft Windows XP Service Pack 2

 Microsoft Windows XP Service Pack 2</li></ul> </li> Microsoft Office Outlook 2003</li> Microsoft Outlook 2000 Standard Edition</li> Microsoft Outlook Express 6.0</li></ul>

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Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows registry

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SYMPTOMS
The Wininet.dll file does not handle redirection from an HTTPS URL to an HTTP URL in Microsoft Windows XP with Service Pack 2.

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CAUSE
This problem occurs because of a security check in the Wininet.dll file. The security check prevents the Wininet.dll file from handling the redirection if the referrer header is not present in the request header.

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Hotfix information
A supported hotfix is now 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 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
There are no prerequisites.

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 tool in Control Panel.

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STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

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MORE INFORMATION
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

After you install the hotfix, create the  registry key. To do this, follow these steps: <ol> Click Start, click Run, type regedit, and then click OK.</li> Locate and then click the following registry subkey:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl

</li> On the Edit menu, point to New, and then click Key.</li> Type FEATURE_ALLOW_HTTPS_REDIRECT_WITHOUT_REFERRER_KB907301, and then press ENTER.</li> On the Edit menu, point to New, and then click DWORD Value.</li> Type iexplore.exe, and then press ENTER.</li> Right-click iexplore.exe, and then click Modify.</li> Type 1 in the Value data box, and then click OK.</li> Exit Registry Editor.</li></ol>

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

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbqfe kbhotfixserver kbwinxpsp3fix kbwinxppresp3fix kbfix kbbug kbpubtypekc KB907301

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