This chapter covers how to install and configure Microsoft ISA Server 2004 on Microsoft Small Business Server 2003 (SBS). This process is really an upgrade for owners of Small Business Server Premium Edition, because it comes with ISA Server 2000.
We will provide an overview of SBS versions, and then explain the requirements for SBS to work with ISA Server 2004. Next, we explain how to upgrade your SBS 2003 Premium Edition system from ISA Server 2000 to ISA Server 2004. We conclude with common troubleshooting steps.