The Win32_Environment WMI class does not return the value of the PATH environment variable if the variable consists of more than 1,024 characters on a Windows XP-based computer

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Article ID: 955988 - View products that this article applies to.
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SYMPTOMS

On a Windows XP-based computer, the Win32_Environment Windows Management Instrumentation (WMI) class does not return the value of the PATH environment variable as expected. This issue occurs if the PATH environment variable consists of more than 1,024 characters.

Applications that rely on the Win32_Environment WMI class to return the PATH environment variable may not work correctly.

CAUSE

This problem occurs because the PATH environment variable is limited to 1,024 characters. To work correctly, the PATH environment variable can consist of up to 1,023 characters and a terminating null character.

RESOLUTION

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.

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

To apply this hotfix, you must have Windows XP Service Pack 2 or a later service pack installed.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to obtain the latest Windows XP service pack

Restart requirement

You do not have to 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 item in Control Panel.
Windows XP with Service Pack 2, x86-based versions
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File nameFile versionFile sizeDateTimePlatform
Cimwin32.dll5.1.2600.34231,358,33606-Aug-200817:28x86
Windows XP with Service Pack 3, x86-based versions
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File nameFile versionFile sizeDateTimePlatform
Cimwin32.dll5.1.2600.56541,358,33606-Aug-200817:40x86

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 about the Win32_Environment WMI class, visit the following Microsoft Web site:
http://msdn.microsoft.com/en-us/library/aa394143(VS.85).aspx
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
950681 On a Windows Server 2003-based computer, the Win32_Environment WMI class does not return the value of the PATH environment variable if the variable contains more than 1,024 characters

Properties

Article ID: 955988 - Last Review: October 8, 2011 - Revision: 2.0
APPLIES TO
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
Keywords: 
kbexpertiseinter kbfix kbbug kbautohotfix kbqfe KB955988

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