On windows, what's the command prompt argument to 'start' that will run a second instance of a program simultaneously?
<p>This forum post</p>

<p><a href="https://cycling74.com/forums/topic/running-multiple-max-applications-on-the-same-machine/#post-369180" rel="nofollow noreferrer">https://cycling74.com/forums/topic/running-multiple-max-applications-on-the-same-machine/#post-369180</a></p>

<p>mentions using</p>

<p><code>open -n /Applications/"max 6.1"/Max.app</code></p>

<p>to run a second instance of, in this case, Max/MSP, but this is on a Mac. What's the equivalent of -n in Windows?</p>

<p>I also found an old forum post</p>

<p><a href="http://www.overclockers.com/forums/showthread.php/647714-How-can-you-open-multiple-instances-of-the-same-application-in-Windows" rel="nofollow noreferrer">http://www.overclockers.com/forums/showthread.php/647714-How-can-you-open-multiple-instances-of-the-same-application-in-Windows</a></p>

<p>where one user suggests</p>

<blockquote>
  <p>...you could also create a cmd or bat file with content similar to
  this:</p>
  
  <p><code>"C:\Program Files\Adobe\Acrobat 7.0\Reader\AcroRd32.exe" /n "%1"</code> or
  <code>start "C:\Program Files\Adobe\Acrobat 7.0\Reader\AcroRd32.exe" /n "%1"</code>
  or <code>call "C:\Program Files\Adobe\Acrobat 7.0\Reader\AcroRd32.exe" /n
  "%1"</code></p>
  
  <p>It will launch a new instance each time you click open with and select
  the cmd/bat file.</p>
</blockquote>

<p>but that didn't seem to work for me (it will open a first instance, but does nothing after that), quite possibly because that was for Windows XP, not 10.</p>