Microsoft KB Archive/811288

= QUERYCLIENTCERT Does Not Make a Callback on Windows 2000 Wldap32.dll =

Article ID: 811288

Article Last Modified on 2/21/2007

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APPLIES TO


 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 3
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 3
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Service Pack 1

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SYMPTOMS
You cannot implement Lightweight Directory Access Protocol (LDAP) Secure Sockets Layer (SSL) client-side authentication on Windows 2000 because the callback that is defined in LDAP_OPT_CLIENT_CERTIFICATE is never called by the Windows 2000 version of Wldap32.dll.

The QUERYCLIENTCERT function is a client-side function that permits the server to request a certificate from the client when it is establishing an SSL connection.



CAUSE
The QUERYCLIENTCERT function does not make callbacks in the Windows 2000 version of Wldap32.dll.

The Microsoft Windows XP version of Wldap32.dll works correctly with QUERYCLIENTCERT calls.



Service Pack Information
To resolve this problem, obtain the latest service pack for Microsoft 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

Hotfix Information
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Windows 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

  Date         Time   Version        Size     File name 08-Jan-2003 11:06  5.0.2195.6109  124,688  Adsldp.dll 08-Jan-2003 11:06  5.0.2195.5781  131,344  Adsldpc.dll 08-Jan-2003 11:06  5.0.2195.6109   62,736  Adsmsext.dll 08-Jan-2003 11:06  5.0.2195.6143  358,672  Advapi32.dll 08-Jan-2003 11:06  5.0.2195.6094   49,936  Browser.dll 08-Jan-2003 11:06  5.0.2195.6143  135,952  Dnsapi.dll 08-Jan-2003 11:06  5.0.2195.6134   96,016  Dnsrslvr.dll 08-Jan-2003 11:06  5.0.2195.6125   45,328  Eventlog.dll 08-Jan-2003 11:06  5.0.2195.6161  147,216  Kdcsvc.dll 22-Nov-2002 10:45  5.0.2195.6137  203,536  Kerberos.dll 21-Aug-2002 08:27  5.0.2195.6023   71,248  Ksecdd.sys 09-Dec-2002 14:04  5.0.2195.6155  507,664  Lsasrv.dll 09-Dec-2002 14:04  5.0.2195.6155   33,552  Lsass.exe 22-Nov-2002 10:20  5.0.2195.6137  109,328  Msv1_0.dll 08-Jan-2003 11:06  5.0.2195.5979  307,472  Netapi32.dll 08-Jan-2003 11:06  5.0.2195.6161  360,720  Netlogon.dll 08-Jan-2003 11:06  5.0.2195.6161  923,408  Ntdsa.dll 08-Jan-2003 11:06  5.0.2195.6161  391,440  Samsrv.dll 08-Jan-2003 11:06  5.0.2195.6120  130,320  Scecli.dll 08-Jan-2003 11:06  5.0.2195.6160  303,888  Scesrv.dll 08-Jan-2003 11:06  5.0.2195.5859   48,912  W32time.dll 04-Jun-2002 13:32  5.0.2195.5859   57,104  W32tm.exe 08-Jan-2003 11:06  5.0.2195.6163  123,664  Wldap32.dll



STATUS
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 Microsoft Windows 2000 Service Pack 4.



MORE INFORMATION
For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:

265173 The Datacenter Program and Windows 2000 Datacenter Server Product

Keywords: kbbug kbfix kbwin2000presp4fix kbqfe kbwin2ksp4fix kbhotfixserver KB811288

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