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Windows NT LDAP Connections Remain Open After LDAP Query

This article was previously published under Q216703
This article has been archived. It is offered "as is" and will no longer be updated.
When using either Outlook Express or Outlook in Internet Only mode, network connections to an LDAP server are not closed after a "Find People" search. This results in an excessive number of connections being opened on the server.
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:
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:
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.
More information
With the Wldap32.dll fix applied, each search concludes with an unbind and the connections are closed.
ack fin TCP IP Lightweight Directory Access Protocol 4.00

Article ID: 216703 - Last Review: 11/02/2013 23:04:00 - Revision: 3.0

Microsoft Windows NT Server 4.0 Standard Edition, Microsoft Windows 95

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