Applications or services that call the LSA Kerberos functions by using 32-bit processes encounter an exception and crash in Windows Server 2003 64-bit or Windows XP 64-bit systems

Local Security Authority (LSA) Kerberos functions that are called by using 32-bit processes may return incorrect results or trigger exceptions in Windows Server 2003 64-bit or Windows XP 64-bit systems. This problem may cause function failure for related applications or services.

This problem occurs because Windows XP 64-bit and Windows Server 2003 64-bit systems do not correctly implement the LSA Kerberos functionality within the Windows 32-bit on Windows 64-bit (WoW64) environment.

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 the problem described in this article. 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

To apply this hotfix, you must have Windows Server 2003 Service Pack 2 (SP2) installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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 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 Server 2003 with Service Pack 2, Itanium-based versions

Windows Server 2003 with Service Pack 2, x64-based versions

Windows XP Professional x64-based Edition with Service Pack 2

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.