In Microsoft Windows take the following steps:

1. Insert the CD or USB memory stick containing CASA Reader.
2. Run casa-reader-install.exe.

Alternatively if preferred, it can also be run directly from a CD, USB stick, or copied to a local disc without installation.

It is not necessary to install the Reader separately if any full versions are also installed because they include the Reader.

In Microsoft Windows take the following steps:

1. Insert the CD or USB memory stick containing CASA.
2. Run casa-install.exe.

It does not matter if a previous version of CASA-IV is already installed. The new version can be installed to replace the old one or to be available alongside the old one.

The Reader and other versions can be installed and uninstalled independently.

In Microsoft Windows take the following steps:

1. Go to the Start Menu - Programs - Intesym - CASA (or CASA Reader) and click on Uninstall.