powershell - How to launch multiple instances of cmd prompt -

i launch multiple instances of program called biospwd.exe.

i use program typing following cmd prompt:

biospwd.exe someinputfile.txt anotherinputfile.txt 

i following:

for ($i = 0; $i -lt 4; $i++) {   biospwd.exe someinputfile$i.txt anotherinputfile$i.txt } 

to run multiple instances of program someinputfile1.txt etc. launches program within powershell ise. i'd launch multiple instances of cmd biospwd.exe program running in each one.

something this?

1..4 | % {    cmd /c "biospwd.exe someinputfile$($_).txt anotherinputfile$($_).txt" } 

edit: think above running 1 instance @ time. try start-process instead:

1..4 | % {    start-process -filepath "cmd" -argumentlist "/c biospwd.exe someinputfile$($_).txt anotherinputfile$($_).txt" }