We installed Exchange Server 2003 on a test server, and now we want to remove it. What's the best way to do so?
The best way to remove any version of Exchange Server is to use its Setup utility, which in theory can uninstall any component that it installed. In fairness, Setup can't reverse some changes, such as those made to the schema during a ForestPrep operation (but hey—that's why we make backups before installing things). The Microsoft article "XADM: How to Manually Remove an Exchange 2000 Installation" (http://support.microsoft.com/?kbid=260378) explains the manual removal procedure for Exchange 2000 Server; as yet, no corresponding article exists for Exchange 2003. Because the machine in question is a test server, the simplest way to remove Exchange 2003 is to reinstall the OS.