.BAT = Change the path of %~dpnx0

Hello.

currentPath is a variable created by set.
currentPath is a variable assigned by another ms-dos variable
that returns the path and its file.
d represents the drive letter
p represents the file path
n represents the file name
x represents the file extension.

To modify this path, you need to retrieve the path without the file.
~dp0

Once the path is obtained through the ~dp0 variable, you add two dots to go up one folder.
~dp0..\
In the upper folder, you specify the folder in which you want to place yourself, followed by the file name if desired. In my case, an html file.
%~dp0..\mars-radio-dnb-2\index.html

To keep the currentPath variable, I created another variable
called cheminAuxiliare and assigned it the path I wanted.

You just need to put echo in front of this variable to display it, or remove echo to launch the program. Here, in my case, it launches an html page.

@echo off
set currentpath=%~dp0 
set cheminAuxiliare=%~dp0..\mars-radio-dnb-2\index.html
%cheminAuxiliare%
pause

Hello,
I don't remember, it's been a long time
but from this path, you create a file containing the variables of the paths you call with the call command I think (I need to check tonight... if no one has answered you in the meantime).

I don't remember, but if I look through my code, I should find it...

--
I think I'm smart enough to say that I know nothing...

Hello and thank you for your help!

Indeed, the solution from codeurh24 seems to work. Thank you.

However, you mention "once the path obtained by the variable ~dp0, we add the two dots to move up one folder." >> 2 dots to move up one folder, but if we want to go up 3 or 4 folders for example, does that work or is there another technique?

Understood!

Thank you for your quick and effective responses.