NetBIOS Listen May Return a Damaged NCB Structure

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Article ID: 317437 - View products that this article applies to.
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Symptoms

The _NCB structure that is returned when a NetBIOS Listen call completes may have a changed server name offset.

NCB Structure Before the Listen Call

0:000> dt NCB 000006fb'ff694e30
+0x000 ncb_command : 0x11 ''
+0x001 ncb_retcode : 0 ''
+0x002 ncb_lsn : 0 ''
+0x003 ncb_num : 0 ''
+0x008 ncb_buffer : (null)
+0x010 ncb_length : 0
+0x012 ncb_callname : [16] "client1 "
+0x022 ncb_name : [16] "TEST-SERVER-1 "
+0x032 ncb_rto : 0 ''
+0x033 ncb_sto : 0 ''
+0x038 ncb_post : (null)
+0x040 ncb_lana_num : 0 ''
+0x041 ncb_cmd_cplt : 0 ''
+0x042 ncb_reserve : [18] ""
+0x058 ncb_event : (null)

NCB Structure After the Listen Call

0:000> dt NCB 000006fb'ff694e30
+0x000 ncb_command : 0x11 ''
+0x001 ncb_retcode : 0 ''
+0x002 ncb_lsn : 0x1 ''
+0x003 ncb_num : 0 ''
+0x008 ncb_buffer : 0x746e6569'6c630000 ""
+0x010 ncb_length : 0x2031
+0x012 ncb_callname : [16] " TEST-SER"
+0x022 ncb_name : [16] "VER-1 "
+0x032 ncb_rto : 0 ''
+0x033 ncb_sto : 0 ''
+0x038 ncb_post : (null)
+0x040 ncb_lana_num : 0 ''
+0x041 ncb_cmd_cplt : 0 ''
+0x042 ncb_reserve : [18] ""
+0x058 ncb_event : (null)

Resolution

To resolve this problem, obtain the latest service pack for Windows XP. For additional 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

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:
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.

File information

The English version of this fix should have the following file attributes or later:
   Date       Time   Version      Size     File name
   ---------------------------------------------------
   11-Feb-02  09:58  5.1.2600.28  135,296  Netbios.sys
				

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows XP Service Pack 1.
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Properties

Article ID: 317437 - Last Review: December 24, 2014 - Revision: 1.0
Applies to
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
Keywords: 
kbnosurvey kbarchive kbautohotfix kbhotfixserver kbqfe kbbug kbenv kbfix kbnetwork kbui kbwinxpsp1fix KB317437

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