# Before Installing

Before you begin to install the software, do these items first:

- Read the Migration and Compatibility section of the TIBCO Enterprise Message Service Release Notes.
- Read the `readme.txt` file for your software release. The `readme.txt` file is located on the TIBCO download site and the TIBCO documentation site, at:

  https://docs.tibco.com/products/tibco-enterprise-message-service

- Read the Cloud Software Group, Inc. License Agreement included with the product.
- Read the appropriate chapters for your platforms.

If you are upgrading TIBCO Enterprise Message Service, or reinstalling a clean version of the software, you may uninstall the product first or let the installer take care of performing the upgrade or reinstall.

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