Problem with "quotes" and Paths in a CMD script (Batch), passing arguments to an EXE

Something very strange is happening to me with this script. For some reason the variable% PTH% is giving problems with the quotes, and because of this you can not use PATHs that contain spaces.

@echo off
set CurrDir=%cd%
set BatchFileDir=%~dp0

REM UTF-8
chcp 65001

goto :main

:GetFileData
for /R %CurrDir% %%i in (*.*) do (  
    Echo Procesando el archivo: "%%i" & set fname=%%~ni 
    set FullFilePath=%%i
    set curr_pth=%%~dpi
    set EXTENSION=%%~xi
    ) & call :renombrar     
goto :eof


:renombrar 
set  "PTH=%curr_pth%"    
set  "FN=%fname:~0,-1%"
set  "EXE=%BatchFileDir%renombrar.exe"
CALL "%EXE%"  %PTH%  "%FN%"  "%EXTENSION%" "%PTH%%FN%%EXTENSION%"
goto :eof


:main
call :GetFileData
goto :eof

If I execute it like that there is no problem as long as the PATH does not have spaces. The .exe enter these parameters:

Path     --> argv[1] -->C:\Carpeta1\Carpeta1\Carpeta3\
FileName --> argv[2] -->Nombre del archivo
Extension--> argv[3] -->.extensión
FullPath --> argv[4] -->C:\Carpeta1\Carpeta1\Carpeta3\Nombre del archivo.extensión

The problem appears if I put the variable "% PTH%" in quotes, which I would like to be able to use routes that contain spaces. In that case I have this output in the EXE.

Path     --> argv[1] -->C:\Carpeta1\Carpeta1\Carpeta3\" Nombre
FileName --> argv[2] -->del
Extension--> argv[3] -->archivo
FullPath --> argv[4] -->.extensión

The problem is not in the C ++ code. This is the only thing I have currently running on the EXE.

int main(int argc, char *argv[])
{
    cout << "Path     --> argv[1] -->" << argv[1] <<  endl;
    cout << "FileName --> argv[2] -->" << argv[2] <<  endl;
    cout << "Extension--> argv[3] -->" << argv[3] <<  endl;
    cout << "FullPath --> argv[4] -->" << argv[4] <<  endl;
    return 0;    
}

I can not see where the fault may be. Any questions?