Using the EUS Toolkit
When you installed PRO/5 on your system the EUS Toolkit programs were placed by default in the "ext" directory - unless you specifically changed the default. (You can place them wherever you want them.) However, in order to use the EUS Toolkit programs it is necessary to specify the EUS Toolkit location in the environments where they will be used.
For example, if you expect to CALL EUS Toolkit programs directly from PRO/5 then the path to the EUS Toolkit should be specified in the PREFIX. Also, the EUS Toolkit requires a configuration file to function properly.