LookupAccountSid for "NT Authority\System" Results in Unnecessary Network Traffic

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Article ID: 276431 - View products that this article applies to.
This article was previously published under Q276431
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If a workstation issues a lookup to LookupAccountSid for the "NT Authority\System" account and this name is passed to the domain controller (DC), the DC will try to find the "System" account in all of its trusted domains. The following results may occur:
  • Windows NT 4.0-based clients do not know how to resolve "NT Authority\System" so they pass it off to the DC. The DC never tries to perform well-known SID resolution from names that are presented from a workstation.
  • Windows 2000-based clients NULL out the domain portion if it is equal to NT Authority, as it is in this case. Because of this, the System account is never resolved, and each of the trusted domains is contacted to try to resolve the account.


To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
The English version of this fix should have the following file attributes or later:
   Date        Time    Version        Size     File name
   11/3/2000   7:09PM  5.0.2195.2647  483,000  Lsasrv.dll


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.


For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:
249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes


Article ID: 276431 - Last Review: February 21, 2007 - Revision: 3.3
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional Edition
kbhotfixserver kbqfe kbbug kbenv kbfix kbnetwork kbwin2000presp2fix KB276431

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