FIX: Windows Explorer tree view may display a folder that does not have a name or that has an incorrect name in Windows 2000 and in Windows XP (894077)


The information in this article applies to:

  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Tablet PC Edition
  • Microsoft Windows XP Media Center Edition
  • the operating system: Microsoft Windows 2000 SP4

SYMPTOMS

Microsoft Windows Explorer tree view may display a folder that does not have a name or that has an incorrect name after an external application creates a folder or renames a folder. This problem may occur with a namespace extension folder that is a junction point in the file system.

When Windows Explorer tree view handles a change notification for the shell from the external application, the change notification for the shell indicates that a folder has been created or has been renamed.

CAUSE

The files and the folders in the namespace extension are stored in the file system folder that is used to register the junction point. The SHChangeNotify function generates a file system ITEMIDLIST. This action occurs when the SHChangeNotify function is called by an application to notify the shell when a file system folder has been created or has been renamed. Windows Explorer tree view handles the change notification by passing the file system ITEMIDLIST to the IShellFolder interface of the folder that contains the item that is being created or modified. This action is performed to obtain the display name of the item. Change notifications for items under the junction point folder are not correctly handled. This problem occurs because the namespace extension expects to be passed an ITEMIDLIST that is generated by the namespace instead of by the file system folder.

RESOLUTION

Microsoft Windows 2000

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may 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 immediately, 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 have to install Microsoft Windows 2000 Service Pack 4 before you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

Registry information

After the hotfix files are installed, you can enable the hotfix by using the policy settings for the shell in the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer

Name: CompareJunctionness
Type: REG_DWORD
Value data: 1

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 
   --------------------------------------------------------- 
   18-Apr-2005  11:28  5.0.3900.7040  2,359,568  Shell32.dll

Windows XP

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may 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 immediately, 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 have to install Microsoft Windows XP Service Pack 2 before you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

Registry information

After the hotfix files are installed, you can enable the hotfix by using the policy settings for the shell in the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer

Name: CompareJunctionness
Type: REG_DWORD
Value data: 1

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     
   ----------------------------------------------------------------
   14-Feb-2005  21:32   6.0.2900.2610  8,451,584  Shell32.dll 
   14-Feb-2005  21:32   6.0.2900.2606    473,600  Shlwapi.dll

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

REFERENCES

For more information about how to specify the location for a namespace extension, visit the following Microsoft Developer Network (MSDN) Web site:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/shell/programmersguide/shell_adv/namespaceextension/nse_junction.asp

Modification Type:MinorLast Reviewed:6/2/2006
Keywords:kbfix kbQFE kbHotfixServer KB894077 kbAudITPRO kbAudEndUser kbAudDeveloper
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