Killing the background window when running a .exe from a Python program

Answer 1

Try this:

from subprocess import Popen, PIPE, STARTUPINFO, STARTF_USESHOWWINDOW
startupinfo = STARTUPINFO()
startupinfo.dwFlags |= STARTF_USESHOWWINDOW
p = Popen(cmdlist, startupinfo=startupinfo, ...)

Answer 2

Thanks to another StackOverflow thread, I think this is what you need:

startupinfo = subprocess.STARTUPINFO()
startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
p = subprocess.Popen(args = "demo.exe", stdout=subprocess.PIPE, startupinfo=startupinfo)

I tested on my Python 2.6 on XP and it does indeed hide the window.