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In Microsoft Windows 2000 Service Pack 3, changes were made to the Hypertext Templates (HTT) feature. These changes help prevent potentially unsafe content from running when you open a folder on your local computer or on your local area network (LAN). To run .htt files on Windows 2000 Service Pack 3 or later versions, you must turn on Web view functionality for local or network folders in Windows Explorer, or you must make changes to the registry.
Specifically, you must add the RevertWebViewSecurity registry entry to the registry. This entry has a value of 1. This value lets Windows display the Web view templates and customizations that do not have an MD5 hash that is registered with Windows. (The MD5 hash is also known as an MD5 message-digest.)
Note These Web view templates and customizations are stored in the Folder.htt file. The Folder.htt is a HyperText template file.
After you change the registry, you receive a security message only for Web view templates or customizations that contain potentially unsafe scripting.
However, after you install Windows 2000 Service Pack 4 , you receive a security message every time that you try to use the HTT feature to customize folders. This problem occurs even if you have added the RevertWebViewSecurity registry entry to the registry.
After you apply this hotfix, add the
registry entry to the registry. This entry has a value of 1. This value lets Windows display the Web View templates and customizations that do not have an MD5 hash that is registered with Windows. Add following registry values under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer:
Value name: RevertWebViewSecurity Value type: DWORD Value data: 1
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.
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, submit a request to 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.
You must have Windows 2000 Service Pack 4 installed to apply this hotfix.
You must restart your computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
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.
Date Time Version Size File name --------------------------------------------------------- 03-Aug-2004 20:22 5.0.3900.6963 2,358,544 Shell32.dll
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For additional information about how to turn on Web view functionality for local or network folders in Windows Explorer, click the following article number to view the article in the Microsoft Knowledge Base:
819028 Windows Explorer no longer displays Web view templates or HTML customizations (using Folder.htt)
For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:
816915 New file naming schema for Microsoft Windows software update packages
For additional 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