Execute batch code when user click on exit

Question

I am working on some code testing, and I stumbled on a problem I can't find or fix. My problem is:

If a user accidentally closes the cmd window, I'd like to execute a batch code before it actually closes. For example:

I run script A.bat . When a user wants to exit, I want it to delete my B.bat and then close the window.
This is how the code may look like:

@ECHO OFF
echo Welcome to A.bat
del B.bat (when user exits the window)

I couldn't find it on google and forums, so I thought maybe you guys could help me out. Thanks in advance, Niels

Answer 1

This works for me:

@ECHO OFF
if "%1" equ "Restarted" goto %1
start "" /WAIT /B "%~F0" Restarted 
del B.bat
goto :EOF

:Restarted

echo Welcome to A.bat
echo/
echo Press any key to end this program and delete B.bat file
echo (or just close this window via exit button)
pause
exit

EDIT: Some explanations added

The start command restart the same Batch file in a new cmd.exe session; the /B switch open it in the same window and the /WAIT switch makes the original file to wait until the new one ends. The new Batch file must end with exit in order to kill the new cmd.exe session (because it was started with the /K switch). No matters if the new cmd.exe session ends normally because the exit command or because it was cancelled with the red X; in any case the control returns after the line that started it in the original execution.