Windows OS doesn't support exec in the POSIX form, just as it doesn't support fork. So these are both emulated by Perl on Windows--but not very accurately. In particular, exec will work pretty much exactly like system. Ie. It will start a new process and wait for that process to end.
If however, you use system( 1, ... ) it will start the new process asynchronously (it won't wait) and if the perl script ends, the new process will continue as if the script had never existed.
And yes. I use Windows.
Now, how about you answer the question I asked?
But, you said "it doesn't work" if you double-click it, or a short-cut to it, and my question to you was:
WHAT ACTUALLY HAPPENS WHEN YOU DOUBLE CLICK IT, OR A SHORT CUT TO IT?
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.