Do you want a look at cmd /? output and http://ss64.com/nt/ . Using start along with cmd /c will give an external window, and using cmd /k will contain it in the nppexec console. One thing that I don't like about the /k option is that it really is not, since "any key" does not do the trick, and Enter must be used.
Test it with cmd /k pause and start cmd /c pause .
Note that the start option closes the window, so any history will also disappear. If this is important, replace /k with /c and use exit when it is done.
source share