|Message:||Process %1 (PID=%2). The domain controller %3 is running Windows %4 %5. Exchange Active Directory Provider requires that domain controllers are running Windows Server 2003 Service Pack 1 or later versions of Windows.|
This Warning event indicates that the domain controller specified in the event description is running Microsoft® Windows® 2003 Server Service Pack 1 (SP1) or later version of Windows. This event may also occur when one or more of the following conditions are true:
You will see Unknown Operating System and Unknown Service Pack in the event description when one or more of the conditions explained here are true.
The domain controller specified in the event description will not be used. As long as there is sufficient capacity in alternative, appropriate domain controllers, mail flow will not be interrupted. However, it is recommended the issue be investigated and fixed as soon as possible.
To resolve this warning, do one or more of the following:
If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.