When you create a custom administrative template file to
customize Microsoft Win32 Internet (WinINet) settings on a Microsoft Windows XP
Service Pack 2 (SP2)-based computer, WinINet ignores the policies that you
For example, when you define a Group Policy object (GPO) to enable the Use HTTP 1.1 through proxy connections
policy is applied, and the setting is enabled. However, WinINet ignores the
policy and continues to use HTTP 1.0 for proxy connections.
This problem occurs because WinINet ignores the
Policies registry key
settings under the following registry subkeys:
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.
There are no prerequisites for installing this hotfix.
You must restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace a previously released hotfix.
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.
Date Time Version Size File name
21-Jul-2005 21:15 6.0.2900.2723 660,480 Wininet.dll
21-Jul-2005 00:18 5.1.2600.2723 30,720 Arpidfix.exe
25-Feb-2005 03:35 188.8.131.52 371,936 Updspapi.dll
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section.
The Use HTTP 1.1 through proxy connections
setting is turned on when Group Policy sets the ProxyHttp1.1
registry entry to 1 under the following registry subkey:
To locate the Use HTTP 1.1 through proxy connections
setting, follow these steps:
- Start Microsoft Internet Explorer.
- On the Tools menu, click Internet
- Click the Advanced tab.
- In the Settings box, locate HTTP
For more information, click the
following article number to view the article in the Microsoft Knowledge Base:
Description of the standard terminology that is used to describe Microsoft software updates
When the Security_HKLM_Only registry key is enabled after you apply this hotfix, the location where the following two settings are reflected and saved changes:
- EnableHTTP1.1 (Tools- Internet Options - Advanced tab – Use HTTP 1.1)
- ProxyHttp1.1 (Tools- Internet Options - Advanced tab – Use HTTP 1.1 through proxy connections)
The following location is where the change is reflected and saved:
If two options are changed from the setting of the default values like this, you have to change the registry setting. You can use the following ADM template example to push out the
registry keys by using Group Policy:
CLASS MACHINE CATEGORY !!WindowsComponents CATEGORY !!InternetExplorer CATEGORY !!ProxySettings POLICY "Use HTTP 1.1" KEYNAME "Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings" VALUENAME EnableHttp1_1 VALUEON NUMERIC 1 VALUEOFF NUMERIC 0 END POLICY POLICY "Use HTTP 1.1 Through Proxy Connections" KEYNAME "Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings" VALUENAME ProxyHttp1.1 VALUEON NUMERIC 1 VALUEOFF NUMERIC 0 END POLICY END CATEGORY END CATEGORY END CATEGORY [strings] AdministrativeTemplates="Administrative Templates" WindowsComponents="Windows Components" ProxySettings="Proxy Settings" InternetExplorer="Internet Explorer"