Update to Windows 95 TCP/IP to Address Out-of-Band Issue

 Last reviewed: December 15, 1997
Article ID: Q168747
The information in this article applies to:
  • Microsoft Windows 95
  • Microsoft Windows 95 OEM Service Release versions 1, 2, 2.1

SYMPTOMS

On a computer running Microsoft Windows 95 (all releases) using the Microsoft TCP/IP protocol, the following error message may occur when certain data is received over the network: 

   Fatal exception 0E at 0028:<address> in VxD MSTCP(01) + 000041AE.
   This was called from 0028:<address> in VxD NDIS(01) + 00000D7C.
After this error message occurs, the computer may not receive further network data until Windows is restarted.

CAUSE

This error message can occur if certain, very specific, "out-of-band" data packets are deliberately sent to the server during a TCP/IP session.

RESOLUTION

This issue is resolved by the following updated files for Windows 95 (all releases):

  • Vtcp.386 version 4.00.0954 (dated 05/20/97) and later
  • Vnbt.386 version 4.00.0959 (dated 05/15/97) and later

To install these updated files, follow these steps:

  1. Download the Vtcpupd.exe file to an empty folder.

  2. In My Computer or Windows Explorer, double-click the Vtcpupd.exe file you downloaded in step 1.

  3. Follow the instructions on the screen.

The following file(s) are available for download from the Microsoft Software Library: 

 ~ Vtcpupd.exe (size: 256584 bytes)
For more information about downloading files from the Microsoft Software Library, please see the following article in the Microsoft Knowledge Base: 

   ARTICLE-ID: Q119591
   TITLE     : How to Obtain Microsoft Support Files from Online Services

MORE INFORMATION

The following files are installed by Vtcpupd.exe: 

   File name     Version    Date/Time        Size     Destination folder
   ---------------------------------------------------------------------
   Vtcp.386      4.00.0954  05/20/97 09:54a  47,413   Windows\System
   Vnbt.386      4.00.0959  05/15/97 09:59a  95,497   Windows\System
For additional information about issues resolved by updates to these components, see the following articles in the Microsoft Knowledge Base: 

   ARTICLE-ID: Q163770
   TITLE     : Cannot Log On to Windows NT Domain w/ DNS Name Resolution
               Only

   ARTICLE-ID: Q141514
   TITLE     : Wrong IP Address Chosen from WINS Server
For additional information about a similar issue with Microsoft Windows NT, see the following article in the Microsoft Knowledge Base: 

   ARTICLE-ID: Q143478
   TITLE     : Stop 0A in TCPIP.SYS When Receiving Out Of Band (OOB) Data

Additional query words: 95
Keywords : osr1 osr2 win95 kberrmsg kbfile kbnetwork
Version : 95
Platform : WINDOWS

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Last reviewed: December 15, 1997
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