This document provides steps to install Oracle Siebel on Windows Server 2008 R2. It describes installing Windows Server, Oracle 11g database, and required Siebel, Oracle client and IIS software. It then outlines configuring the database including creating tablespaces. The Siebel software is installed and configured including the Siebel Server, adding a gateway and enterprise. Finally, the Siebel Web Server Extension is configured to complete the installation.