visdiff does not work when launched from an executable produced through mcc on Windows

I have implemented a MatLab program that calls function 'visdiff' to compare XML files.

It works perfectly well when I run the program from MatLab workspace. No error. Very nice GUI.

I compiled my program on Windows:

mcc -e Comp_CBCT_Modes_New_OK2.m

I get no error and the executable is generated.

I have NOT instaled MatLab runtime so far. I am aware that the libraries of my full MatLab installation will be used.

When I start the executable I get the following fatal error:

"Undefined function 'visdiff' for input arguments of type 'char'.

Error in = > Comp_CBCT_Modes_New_OK2 at line 299"

The online MatLab documentation shows examples of function visdiff with file names passed as char vectors ('file_name').

Furthermore, why function "visdiff" works when I run my program from MatLab workspace, which uses matLab interprter?

I am using MatLab R2020b

Shall I test my executable with Matlab runtime?

Please, help. I am developing my thesis that is almost due.

Thank you.

Maura (email: [e-mail])