# Optional RED Interface Items

Changes to the source of the sample Substation ES CICS IVPs require additional steps. Although executable modules have been supplied as part of the installation, you can change the source code. JCL and procedures are available for compiling and executing the sample programs.

Changing the original source code is not recommended since samples are replaced when they are updated by TIBCO.

Edit the data sets and selected members in the following steps. Follow the instructions in the member and submit it for execution.

1. Compiling of C Programs
2. Compiling of COBOL Programs
3. Using Customized HUB

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