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The UUID that you create in Windows XP is only unique on the local computer

Support for Windows XP has ended

Microsoft ended support for Windows XP on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

SYMPTOMS
When you create a universally unique identifier (UUID) on a computer that is running Microsoft Windows XP, the UUID that you create is only unique on the local computer. This problem occurs if a Microsoft Windows Mobile 5.0-based device is connected to the computer by using a USB connector.

Specifically, if you use the UuidCreateSequential function to create a UUID, the UuidCreateSequential function returns an RPC_S_UUID_LOCAL_ONLY value. This value indicates that the UUID is guaranteed to be unique only on the local computer. If you use the Uuidgen.exe tool to create a UUID, the Uuidgen.exe tool returns a UUID, and the Uuidgen.exe tool displays the following warning message:
Warning: Unable to determine your network address. The UUID generated is unique on this computer only. It should not be used on another computer.
Note This problem does not occur if a Microsoft Windows Mobile 2003-based device is connected to the computer.
CAUSE
This problem occurs because the connection to the Windows Mobile 5.0-based device creates a Remote Network Driver Interface Specification (RNDIS) adapter. The RNDIS adapter is a pseudo-network adapter. This RNDIS adapter contains a media access control (MAC) address that is not universally unique. The UuidCreateSequential function incorrectly uses this MAC address to generate the UUID.
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. 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 XP Service Pack 2 (SP2) installed on the computer. 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 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 item in Control Panel.
File nameFile versionFile sizeDateTimePlatform
Rpcss.dll5.1.2600.3082399,36013-Feb-200712:51x86
WORKAROUND
To work around this problem, disconnect the Windows Mobile 5.0-based device when you create the UUID.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
MORE INFORMATION
The UuidCreateSequential function returns an RPC_S_UUID_LOCAL_ONLY value instead of an RPC_S_OK value when the computer does not have an Ethernet address or a token ring address. For more information, visit the following Microsoft Web site:The Uuidgen.exe tool is available in Microsoft Platform Software Development Kit (SDK). You can use this tool to create a UUID. For more information, visit the following Microsoft Web site: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
Properties

Article ID: 932380 - Last Review: 10/08/2011 20:44:00 - Revision: 3.0

  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
  • kbautohotfix kbexpertiseinter kbwinxppresp3fix kbfix kbbug kbHotfixServer kbqfe KB932380
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