>A prg is not included in a project file.
>Is it supposed to work at all when exe is launched from command line ?
>It does work for exe build/run in IDE.
>
> do &xprg
>
>where xprg full path to prg file
>
>Set path to justpath(xprg)
>or
>cd justpath(xprg)
>
>don't help.
>
>The error :
>File 'xyz.prg' does not exist

Michael,

You have to compile it first

compile (xprg)
do  (forceext(xprg, ''))