Install ExpressConnect for Oracle (ECO) using the setup program.
All open applications or utilities are closed.
Replication Server is already installed on your machine. You can install ECO only into an existing Replication Server installation.
The target computer meets the hardware requirements and operating system requirements for installing ECO.
You obtain a tnsnames.ora file from the Oracle admininstrator, which includes connection information for any replicate Oracle data server that Replication Server will be connecting to using ECO.