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Important This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
If a Microsoft Outlook client queries the Active Directory directory service, the maximum number of entries that are returned by the Active Directory is restricted to 5,000 entries.
Microsoft Windows 2000 Active Directory returns a maximum of 5,000 entries, regardless of the number of entries that are to be returned in response to a client’s query.
The client may not receive a warning message that states that the Active Directory search is restricted to a maximum of 5,000 entries.
Regardless of the registry setting on the client computer to request more than 5,000 entries, Active Directory returns a maximum of 5,000 entries.
This behavior occurs to improve the query response time for searches for Active Directory entries. To improve the query response time for searches, searches are limited to 5,000 entries in a Windows 2000 domain.
Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
No prerequisites are required.
You must restart your computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
The English version of this hotfix has the file attributes (or later file attributes) 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.
After you apply this hotfix, you must modify the 0003660d registry entry on the client computer. You must do this to enable the client to request more than 5,000 entries. To modify the 0003660d registry entry on the client computer, follow these steps:
On the client computer, click Start, click Run, type regedit in the Open box, and then click OK.
Locate and then click the following registry subkey: