The final batch file is as follows, thanks to the answer of Przemyslaw Szufel and the link:
@echo off
set myDIR=%~d2\SA_Ptbls\julia-1.5.0-win64
if not exist %myDIR% (mkdir %myDIR%)
set PATH=%~d2\SA_Ptbls\julia-1.5.0-win64\julia-1.5.0\bin;%PATH%
set JULIA_DEPOT_PATH=%~d2\SA_Ptbls\julia-1.5.0-win64
julia
When executing the batch file, we obtain:
the batch file can be run from a shortcut, after being configured as shown: