NET SEND <MyComputer> Command May Not Work if Using a Hardware Profile with a Network Adapter Disabled

ID: Q233249

The information in this article applies to:

SYMPTOMS

When you have a computer with two network interface cards in it, and you use a hardware profile to boot the computer with one of the interfaces disabled, you may not be able to run a NET SEND command to the local computername.


CAUSE

This problem occurs because the Netbt.sys driver maintains an internal name table, visible using the nbtstat -n command. When you run a NET SEND command to the local computername, Service Pack 4's Netbt.sys file used the first name/address mapping in the local name table, without validating it to make sure it was a legitimate address.


RESOLUTION

NetBT has been fixed to check for a valid (non-zero) IP address when looking up an IP address in the local name table.

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific problem, Microsoft recommends that you wait for the next Windows NT 4.0 service pack that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp
The English version of this fix should have the following file attributes or later:

   Date      Time      Size      File name    Platform
   ---------------------------------------------------
   06/04/99   01:45p   122,832   Netbt.sys    x86
   06/04/99   01:45p   223,664   Netbt.sys    Alpha

NOTE: If this product was already installed on your computer when you purchased it from the Original Equipment Manufacturer (OEM) and you need this fix, please call the Pay Per Incident number listed on the above Web site. If you contact Microsoft to obtain this fix, and if it is determined that you only require the fix you requested, no fee will be charged. However, if you request additional technical support, and if your no-charge technical support period has expired, or if you are not eligible for standard no-charge technical support, you may be charged a non-refundable fee.

For more information about eligibility for no-charge technical support, see the following article in the Microsoft Knowledge Base:
Q154871 Determining If You Are Eligible for No-Charge Technical Support


STATUS

Microsoft has confirmed this to be a problem in Windows NT 4.0.

Additional query words: 


Keywords          : kbbug4.00 kbfix4.00 
Version           : winnt:4.0 SP4
Platform          : winnt 
Issue type        : kbbug

Last Reviewed: August 8, 1999