The Explorer.exe process stops responding when you use network shortcuts in Windows XP


Consider the following scenario:
  • You are using a computer that is running Microsoft Windows XP with Service Pack 1 (SP1) or Microsoft Windows XP with Service Pack 2 (SP2).
  • You have installed security update 821557 (MS03-027) on the computer.
  • You are using the network shortcuts in My Network Places to access the network folder shortcuts on a remote computer.
In this scenario, the shortcuts may generate lots of network traffic. Additionally, the Explorer.exe process that corresponds to this action may stop responding.


This problem occurs because the network shortcuts (shell links) verify target names every time that the network shortcuts are resolved. A network shortcut is resolved whenever a pointer to an item identifier list that contains one of the target folder shortcuts is bound to the original network shortcut. Network traffic increases because the bind operations take lots of time.

Note Security update 821557 is included in update rollup 826939 for Windows XP. You cannot remove security update 821557 if update rollup 826939 is installed on the computer.


Hotfix information

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.


Windows XP SP1 or Windows XP SP2

Restart requirement

You must restart the 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.
Windows XP, x86-based versions

Date Time Version Size File name Service Pack
19-Oct-2004 07:30 6.0.2800.1596 1,055,232 Browseui.dll SP1
19-Oct-2004 07:30 6.0.2800.1592 82,432 Fldrclnr.dll SP1
19-Oct-2004 07:30 6.0.2800.1602 1,387,520 Shdocvw.dll SP1
19-Oct-2004 07:30 6.0.2800.1602 8,443,392 Shell32.dll SP1
19-Oct-2004 07:30 5.1.2600.1592 700,928 Sxs.dll SP1
20-Sep-2004 05:05 5.1.2600.1592 594,432 Xpsp2res.dll SP1
18-Oct-2004 19:00 6.0.2800.1592 921,600 Comctl32.dll SP1
18-Oct-2004 23:38 6.0.2900.2530 1,483,776 Shdocvw.dll SP2
18-Oct-2004 23:38 6.0.2900.2531 8,450,560 Shell32.dll SP2
Windows XP, Itanium-based versions

Date Time Version Size File name Platform
18-Oct-2004 11:27 6.0.2800.1596 2,869,760 Browseui.dll IA-64
18-Oct-2004 11:27 6.0.2800.1592 130,560 Fldrclnr.dll IA-64
18-Oct-2004 11:27 6.0.2800.1602 3,669,504 Shdocvw.dll IA-64
18-Oct-2004 11:27 6.0.2800.1602 14,394,368 Shell32.dll IA-64
18-Oct-2004 11:27 5.1.2600.1592 2,034,176 Sxs.dll IA-64
19-Sep-2004 16:12 5.1.2600.1592 593,920 Xpsp2res.dll IA-64
18-Oct-2004 11:27 6.0.2800.1592 2,639,360 Comctl32.dll IA-64
18-Oct-2004 19:00 6.0.2800.1596 1,055,232 Wbrowseui.dll x86
18-Oct-2004 19:00 6.0.2800.1592 82,432 Wfldrclnr.dll x86
18-Oct-2004 19:00 6.0.2800.1602 1,387,520 Wshdocvw.dll x86
18-Oct-2004 19:00 6.0.2800.1602 8,443,392 Wshell32.dll x86
18-Oct-2004 19:00 5.1.2600.1592 700,928 Wsxs.dll x86
19-Sep-2004 16:35 5.1.2600.1592 594,432 Wxpsp2res.dll x86


To work around this problem, create and use network shortcuts outside My Network Places.


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 about the standard terminology that is used to describe Microsoft software updates, 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