Launch a .exe file from a .bat file

Issue

I would like to make a batch file that launches a .exe file that takes a value as input and return an output value.

Solution

It will work same as a DOS example

If you type in DOS prompt

dir c:\ >c:\test.txt 

• dir is the command (or EXE),
• c:\ is the argument that is passed to the command
• >c:\test.txt is the output redirection,
  • therefore the result is written in the specified file instead of to the screen.

From there write a batch file with Notepad containing the lines:

dir c:\ >c:\test.txt  
echo FINISHED

• Save it in a folder accessible by PATH variable or c:\.
• Your,exe normally displays the string of characters on the screen.

Thanks to amigo for this tip.