On a computer that is running an Itanium-based version of Windows Server 2008, the Ftp.exe utility crashes when you run the "mput" command

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Consider the following scenario:
  • You have computer that is running an Itanium-based version of Windows Server 2008.
  • You run the mput command in the Ftp.exe utility.
  • The first argument of the mput command does not match any file name.
In this scenario, the Ftp.exe utility crashes.

Note The issue does not occur if the first argument of the mput command matches a file name.
This problem occurs because the Ftp.exe utility uses the UNICODE version of the wprintf function. The wprintf function treats the %s format as a UNICODE (WCHAR*) string. However, the ftp!mput function accepts the char* string as input. Then, the ftp!mput function calls the wprintf function by using the "%s%ws" format string to print one single-byte string (the file name) and one UNICODE string (the error message).

Because the file name is an ANSI string, the name is not aligned correctly. This triggers a misalignment exception in Itanium-based versions of Windows Server 2008.

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: 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.


No prerequisites are required to apply this hotfix.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

Registry information

To use this hotfix, you do not have to make any changes to the registry.

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 2008, IA-64-based versions
File nameFile versionFile sizeDateTimePlatform
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

Steps to reproduce the problem

  1. On a computer that is running an Itanium-based version of Windows Server 2008, open a command prompt .
  2. Connect to an FTP server by using the Ftp.exe utility.
  3. Run the mput command together with the xyz string as the first argument.

    Note The xyz string does not match any file name.
You experience the problem that is described in the "Symptoms" section.

Article ID: 951598 - Last Review: 01/15/2015 09:07:49 - Revision: 4.0

Windows Server 2008 for Itanium-Based Systems

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