|Environment Variable - PATH|
This is a standard environment variable on most (all?) operating systems that PPWIZARD will run on.
It is a list of directories where programs might be found. While regina does not use this variable (it would be nice if it did), unless the regina interpreter is located in one of the directories mentioned in this environment variable then you will need to specify the full name of the regina interpreter. If you are using the native rexx under OS/2 then PPWIZARD should be in one of the directories specified (update "CONFIG.SYS" if required).
When PPWIZARD searches for files (for example when a #include command is used), the path is not used by default. If you wish to search the "PATH" this could be easily configured using /IncludePath or IncludePath() (by including "*PATH").