LDAP USERCERTIFICATE Command Does Not Support the Binary Attribute

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Article ID: 250868 - View products that this article applies to.
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Attempts to import user certificates from Lightweight Directory Access Protocol (LDAP) programs that support the binary attribute on the usercertificate command may not work and may generate "Unknown datatype" error message.


The LDAP command parser in Windows 2000 does not support the binary attribute.


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


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 1.

More information

For a description of how the binary attribute works, see section 6.5 of RFC 2252.


Article ID: 250868 - Last Review: October 26, 2013 - Revision: 4.0
Applies to
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional Edition
kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kberrmsg kbfix kbwin2000sp1fix KB250868

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