The installed version of TCPIP.SYS is incompatible with Exchange 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: 2006-06-06

Microsoft® Exchange Server 2007 setup cannot continue because the installed version of Tcpip.sys is incompatible with Microsoft Exchange.

Exchange 2007 setup requires that the local computer have the update referred to by Microsoft Knowledge Base article 898060 installed.

This machine is currently running the Tcpip.sys driver from Windows Server™ 2003 Service Pack 1. This driver may cause connectivity issues in wide area networks.

To resolve this issue, install the update referred to by Microsoft Knowledge Base article 898060 from "Update for Windows Server x64 Edition (KB898060)" (, and then rerun Exchange 2007 setup.

For more information about this warning, see Microsoft Knowledge Base article 898060, "Installing security update MS05-019 or Windows Server 2003 Service Pack 1 may cause network connectivity between clients and servers to fail" (