Symantec AntiVirus cannot detect viruses after you install a hotfix on a computer that is running Windows Server 2003 or Windows XP SP2

Support for Windows XP has ended

Microsoft ended support for Windows XP on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

This article has been archived. It is offered "as is" and will no longer be updated.
SYMPTOMS
You install a hotfix on Microsoft Windows Server 2003 or on Microsoft Windows XP Service Pack 2 (SP2). However, after you install the hotfix, Symantec AntiVirus cannot correctly detect viruses in encrypted files that reside on a network share or in a document library.

This problem occurs if you have installed the hotfix that is described in the following Microsoft Knowledge Base article:
922582 Error message when you try to update a Microsoft Windows-based computer: "0x80070002"
This problem occurs if the following conditions are true:
  • A legacy filesytem filter driver is installed on the same computer as Symantec AntiVirus.
  • The legacy filesystem filter driver is configured to encrypt files that are stored on network shares.
RESOLUTION

Hotfix information

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
There are no prerequisites for installing this hotfix package.
Restart requirement
You have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace a previously released hotfix.
File information
The English version of this hotfix uses a Microsoft Windows Installer package to install the hotfix. The dates and the times for these files are listed in Coordinated Universal Time (UTC) in the following table. When you view the file information, the date 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, x64-based versions
File nameFile versionFile sizeDateTimePlatformSP requirement
Fltmgr.sys5.2.3790.2922227,84024-Apr-200703:27x64SP1
Fltmgr.sys5.2.3790.4066228,86424-Apr-200703:32x64SP2
Windows Server 2003, Itanium-based versions
File nameFile versionFile sizeDateTimePlatformSP requirement
Fltmgr.sys5.2.3790.2922474,11224-Apr-200703:27IA-64SP1
Fltmgr.sys5.2.3790.4066474,62424-Apr-200703:33IA-64SP2
Windows Server 2003, x86-based versions
File nameFile versionFile sizeDateTimePlatformSP requirement
Fltmgr.sys5.2.3790.2922131,07223-Apr-200711:18x86SP1
Fltmgr.sys5.2.3790.4066131,58423-Apr-200719:10x86SP2

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
There are no prerequisites for installing this hotfix package.
Restart requirement
You have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace a previously released hotfix.
File information
The English version of this hotfix uses a Microsoft Windows Installer package to install the hotfix. The dates and the times for these files are listed in Coordinated Universal Time (UTC) in the following table. When you view the file information, the date 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 Service Pack 2 (SP2)
File nameFile versionFile sizeDateTimePlatformSP requirement
Fltlib.dll5.1.2600.297816,89621-Aug-200612:26x86SP2
Fltmc.exe5.1.2600.297823,04021-Aug-200609:43x86SP2
Fltmgr.sys5.1.2600.3124129,92023-Apr-200710:51x86SP2
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
MORE INFORMATION
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
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.
fltmgr filter manager
Properties

Article ID: 933215 - Last Review: 01/16/2015 02:14:42 - Revision: 3.0

Microsoft Windows Server 2003, Enterprise x64 Edition, Microsoft Windows Server 2003, Standard x64 Edition, Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems, Microsoft Windows Server 2003, Enterprise Edition (32-bit x86), Microsoft Windows Server 2003, Standard Edition (32-bit x86), Microsoft Windows XP Professional, Microsoft Windows XP Home Edition

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