Knowledge Base

NBT Query Can Hang Computer or Drop Back to MS-DOS

Article ID: 120052

Article Last Modified on 2/4/2002

Microsoft TCP/IP for Windows for Workgroups 3.11

This article was previously published under Q120052

SYMPTOMS

Your computer running Windows for Workgroups version 3.11 with TCP/IP-32 network protocol stops responding (hangs) or drops back to MS-DOS when the 32-bit NetBIOS over TCP/IP (NBT) makes a query to the Domain Name Service (DNS).

CAUSE

The buffer allocated for the DNS name query in 32-bit NBT is one byte too short. The code that creates the DNS name query does not count the length byte of the domain name and allocates a buffer that is one byte short.

RESOLUTION

Microsoft has released a new file, VNBT.386, that corrects this problem.

STATUS

Microsoft has confirmed this to be a problem in TCP/IP-32. This problem has been corrected in an updated TCP/IP-32 version 3.11a. For information on the availability of TCP/IP-32 3.11a, see article 122544 in the Microsoft Knowledge Base.

Additional query words: wfw wfwg prodtcp32 1.00 3.11 3.11a tcpip

Keywords: KB120052