You receive a security message every time that you try to use the Hypertext Templates feature to customize folders on Windows Server 2000 Service Pack 4 (883498)

SYMPTOMS

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 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. Add following registry values under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer:

Value name: RevertWebViewSecurity
Value type: DWORD
Value data: 1

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

You must have Windows 2000 Service Pack 4 installed to apply this hotfix.

Restart requirement

You must restart your 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.

   Date         Time   Version        Size       File name
   ---------------------------------------------------------
   03-Aug-2004  20:22  5.0.3900.6963  2,358,544  Shell32.dll

MORE INFORMATION

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