KB168747 - Update to Windows 95 TCP/IP to Address Out-of-Band Issue

Article ID: 168747

Article Last Modified on 11/15/2006

Microsoft Windows 95
Microsoft Windows 95
Microsoft Windows 95
Microsoft Windows 95

This article was previously published under Q168747

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:

Download the Vtcpupd.exe file to an empty folder.
In My Computer or Windows Explorer, double-click the Vtcpupd.exe file you downloaded in step 1.
Follow the instructions on the screen.

The following file is available for download from the Microsoft Download Center:

Download Vtcpupd.exe now

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to Obtain Microsoft Support Files from Online Services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.

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:

163770 Cannot Log On to Windows NT Domain w/ DNS Name Resolution Only

154579 Slow TCP/IP Performance When Resuming Large Data Transfer

152791 Error Message: No Domain Server Was Available...

For additional information about a similar issue with Microsoft Windows NT, see the following article in the Microsoft Knowledge Base:

143478 Stop 0A in TCPIP.SYS When Receiving Out Of Band (OOB) Data

Keywords: kberrmsg kbdownload kbgraphxlinkcritical kbqfe kbnetwork kbfile kbhotfixserver KB168747