Error messages when you search the address book by using a full user name

Article ID: 325314 - View products that this article applies to.
This article was previously published under Q325314
Important This article contains information about how to modify the registry. Make sure that you back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756
(http://support.microsoft.com/kb/322756/ )
How to back up and restore the registry in Windows
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Symptoms

If you type a full user name in the Display Name field in the Find dialog box of your address book when you try to search a Lightweight Directory Access Protocol (LDAP) server in Outlook 2002, Outlook 2003, Outlook 2007, or Outlook 2010, you may receive one or more of the following errors:
Unable to display results because too many entries in the Internet Directory match your search criteria.
The search could not be completed. MAPI_E_CALL_FAILED.
Cannot contact the LDAP server (81) error.
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Resolution

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require you to reinstall the operating system. Microsoft cannot guarantee that these problems can be resolved. Modify the registry at your own risk.

Outlook 2002

To resolve this problem, obtain the latest service pack for Microsoft Office XP. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
307841
(http://support.microsoft.com/kb/307841/ )
How to obtain the latest Office XP service pack

After you install the latest Microsoft Office XP service pack, follow these steps:
  1. Exit Outlook 2002.
  2. Click Start, and then click Run.
  3. In the Open box, type regedit, and then click OK.
  4. Verify that the following key exists. If it does exist, go to step 5.
    HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\LDAP
    If the key does not exist, you must create it. To do this, follow these steps:
    1. Locate and then select the following registry key:
      HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook
    2. On the Edit menu, click New, and then click Key.
    3. Type ldap, and then press the ENTER key.
  5. On the Edit menu, point to New, and then click DWORD Value
  6. Type NoDisplayNameSearch for the new value, and then press Enter.
  7. Right-click the new string value name, and then click Modify.
  8. In the Value data box, type 1, and then click OK.
  9. Exit Registry Editor.

Outlook 2003, Outlook 2007, and Outlook 2010

  1. Exit Outlook 2003.
  2. Click Start, and then click Run.
  3. In the Open box, type regedit, and then click OK.
  4. Verify that the following key exists. If it does exist, go to step 5.
    HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\LDAP
    If the key does not exist, you must create it. To do this, follow these steps:
    1. Locate and then select the following registry key:
      HKEY_CURRENT_USER\Software\Microsoft\Office\xx.0\Outlook

      Where xx.0 is 11.0 for Outlook 2003, 12.0 for Outlook 2007, and 14.0 for Outlook 2010.
    2. On the Edit menu, click New, and then click Key.
    3. Type ldap, and then press the ENTER key.
  5. On the Edit menu, click New, and then click DWORD Value.
  6. Type NoDisplayNameSearch, and then press Enter.
  7. Right-click the new string value name, and then click Modify.
  8. In the Value data box, type 1, and then click OK.
  9. Exit Registry Editor.
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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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More information

For more information about the English version of this hotfix, click the following article number to view the article in the Microsoft Knowledge Base:
311829
(http://support.microsoft.com/kb/311829/ )
FIX: LDAP search error when you try to use a full name to search the Display Name field
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Properties

Article ID: 325314 - Last Review: March 19, 2013 - Revision: 6.0
Applies to
  • Microsoft Outlook 2002 Standard Edition
  • Microsoft Office Outlook 2003
  • Microsoft Office Outlook 2007
  • Microsoft Outlook 2010
Keywords: 
kbbug kbfix kbofficexppresp2fix kbqfe KB325314
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