Active Directory Connector server is not running the latest Service Pack for Windows 2000 Server

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at]  

Topic Last Modified: 2005-11-17

The Microsoft® Exchange Server Analyzer Tool examines the Win32_OperatingSystem Microsoft Windows® Management Instrumentation (WMI) class to determine the value for the ServicePackMajorVersion key on the Active Directory Connector (ADC) server. The Exchange Server Analyzer also examines the following registry entry to determine the version of Windows that is running on the ADC server:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\CurrentVersion

If the Exchange Server Analyzer determines that the ADC server is running a Microsoft Windows 2000 Server operating system but is not running Service Pack 4 (SP4) for Windows 2000 Server, a warning is displayed.

As a best practice, Microsoft recommends running the latest service packs for all software in your Exchange deployment, including ADC servers.

  1. Update this ADC server and any others that are running a Windows 2000 Server operating system to SP4, plus the latest hotfixes and updates from Windows Update.

  2. Update all other Exchange Server computers running a Windows 2000 Server operating system to the latest service pack and roll-ups.

For more information about obtaining and installing service packs for Windows 2000 Server operating systems, see

For more information about obtaining and installing Exchange Server service packs and roll-ups, see