The process for installing the ACUCOBOL-GT runtime on your UNIX or Windows server is basically the same as the process for installing AcuLaunch.
In UNIX, follow the instructions in section 3.2.2 Installing AcuLaunch, taking care to insert the ACUCOBOL-GT runtime installation media and to select a target directory for the installation.
In Windows, follow the instructions for installing AcuLaunch from the Acucorp product CD-ROM, but make sure to select "ACUCOBOL-GT runtime" from the Product Selection screen that results.