Microsoft KB Archive/839638

= Universally unique identifiers that are returned contain the same seed value in Windows Server 2003 =

Article ID: 839638

Article Last Modified on 7/24/2007

-

APPLIES TO


 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise x64 Edition

-





SYMPTOMS
You may experience one of the following symptoms:
 * When you call the ExUUIDCreate routine in kernel mode, all the universally unique identifiers (UUID) that are returned by the call may have the same seed value. The seed value is the last twelve characters of the UUID.
 * When you use the Uuidgen command-line utility with the –x parameter to force serial UUIDs, all the UUID values that are generated may have the same seed value.

The seed value that is repeated is 505054503030. These 12 characters are the ASCII representation of the seed value PPTP00.



CAUSE
This problem may occur if the Network Driver Interface Specification (NDIS) wide-area network (WAN) miniport drivers do not support the OID_GEN_VENDOR_ID object. The OID_GEN_VENDOR_ID object specifies a three-byte vendor code that is followed by a single byte that the vendor assigns to identify a particular network adaptor. The vendor code that is specified is a vendor code that is registered with the Institute of Electrical and Electronics Engineers, Inc. (IEEE). The IEEE code uniquely identifies the vendor and is the same as the three bytes that appear at the beginning of the network adaptor hardware address. Vendors that do not have an IEEE-registered code are expected to use the value 0xFFFFFF. These vendors are expected to use this value so that the value is correctly interpreted by the UUID creation code. This problem occurs if the value that is returned is 0x00000000 instead of 0xFFFFFFFF. Because the value 0x00000000 is returned, the UUIDs that are generated are not unique.



Hotfix information
A supported hotfix is now 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 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

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

Prerequisites
No prerequisites are required.

Restart requirement
You must restart your 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 Server 2003, 32-bit versions
Date        Time   Version            Size    File name -- 03-May-2004 23:46  5.2.3790.169       38,912  Raspppoe.sys 04-May-2004 00:33  5.2.3790.169       68,096  Raspptp.sys

Windows Server 2003, 64-Bit Enterprise Edition
Date        Time   Version           Size     File name -- 03-May-2004 23:46  5.2.3790.169      118,272  Raspppoe.sys 03-May-2004 23:46  5.2.3790.169      181,760  Raspptp.sys



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional 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

Additional query words: NdisQueryHwAddress

Keywords: kbqfe kbhotfixserver kbbug kbfix kbwinserv2003presp1fix KB839638

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.