LDAP Does Not Authenticate on French WinNT Due to Encryption

• Microsoft Windows NT Server version 4.0
• Microsoft Windows NT Workstation version 4.0
• Microsoft Windows NT Server, Enterprise Edition version 4.0
• Microsoft Windows NT Server version 4.0, Terminal Server Edition

SYMPTOMS

You are unable to securely authenticate to an LDAP server using applications such as Windows Address Book or NetMeeting on the French version of Windows NT 4.0 when using NTLM. The application may fail to read entries and may return an error message.

CAUSE

Because LDAP asks for confidentiality for NTLM, DPA, and MSN authentication packages, it will not work on the French version of Windows NT.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, please see the following article in the Microsoft Knowledge Base:

Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

STATUS

Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

MORE INFORMATION

With this fix, LDAP no longer asks for confidentiality when using NTLM.

Keywords : NT4SP4Fix kbbug4.00 kbfix4.00.sp4
Version : WinNT:4.0
Platform : winnt
Issue type : kbbug