This is a rexx function provided by PPWIZARD. This routine is named similar to an OS/2 specific call with a similar purpose, this PPWIZARD version works in all operating systems supported by PPWIZARD.
This function takes two parameters as follows:
Unix unix directories should be separated by ':', for all other operating systems the ';' character should be used.
The return value is the full name of the file or '' if not found.