Q:

What code will close a the command line window when 'Cls' does not?

I have a batch file that launches standalone Hangouts, but the cmd console window does not close, not even when 'CLS' or 'ECHO OFF' is the last line. What code would close the command line window ?
I have the answer - I just need to precede the existing code with : Start ""

A:

What you need is the Start command.
Try the following example to see what I mean:
@Calc.exe

Now try this one:
@Start Calc.exe

All you need to do is replace Calc.exe with the name of your actual executable.
BTW, if your program or its path contains spaces, you should use this format, where "" is a blank title, (can optionally be filled).
Start "" "C:\Path To\My Program.exe"

I hope this helped

