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Window handle leaks are seen when applications create queues with the option IsWorldReadable set to True. This only occurs with Windows NT computers. Security differences on Windows 95 and 98 do not support the creation of queues with IsWorldReadable set to True.
This occurs in GetCurrentUserSid because the Open (Thread/Process) Token call was not paired with a CloseHandle call.
Windows NT Server or Workstation 4.0
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:
152734how 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:
To resolve this problem, obtain the latest service pack for Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition.
This problem was first corrected in Windows NT Server 4.0 Service Pack 6 and Windows NT Server 4.0, Terminal Server Edition Service Pack 6.
This problem has been corrected in Windows NT 4.0 SP6 with the addition of CloseHandle calls to match Open (Thread/Process) Token calls.