NET USE to 16 Character Dotted-DNS Name May Fail

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Article ID: 221150 - View products that this article applies to.
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The NET USE command fails to connect to a server with a 16-character DNS name (such as


NetBIOS names are limited to 16 characters. The last character is reserved for the system and is a special character used to identify the resource type. When connecting to a DNS-style name, the sixteenth character was being modified by the system instead of being passed to the DNS. DNS-style names should be passed "literally" to the domain name resolver to be resolved.


To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:
  • Windows Service Pack Center -or-

  • 152734 how to obtain the latest windows nt 4.0 service pack
For information on obtaining the individual software update, contact Microsoft Product Support Services. 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:;EN-US;CNTACTMS


Microsoft has confirmed that this is a problem in Windows NT 4.0. This problem was first corrected in Windows NT version 4.0 Service Pack 5.


Article ID: 221150 - Last Review: June 11, 2012 - Revision: 2.0
  • Microsoft Windows NT Server 4.0 Standard Edition
  • Microsoft Windows NT Workstation 4.0 Developer Edition
kbhotfixserver kbqfe kbbug kbfix KB221150

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