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

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, you may receive the following error messages: -and- -and-

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. 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:

Use the following steps after you have installed the latest Microsoft Office XP service pack.

1. Quit 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, 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 so:
   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 the ENTER key.
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. Quit Registry Editor.

Outlook 2003

1. Quit 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, 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 so:
   1. Locate and then select the following registry key:
      HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\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, click New, and then click DWORD Value.
6. Type NoDisplayNameSearch, and then press the ENTER key.
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. Quit Registry Editor.

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

For more information about the English version of this hotfix, click the following article number to view the article in the Microsoft Knowledge Base: