Start another app in back

[zexor]

Is it possible to open another app without losing focus of the current foreground app? I have a program that will open another app and test something on it then close it, and reopen it again and repeat. Can this be all done in the back while i am typing away on another app in the foreground without getting interrupted by the new app opening and changing focus?

i dont want the new app open minimized or anything, just quietly open in the background.

I tried using process startinfo.windowstyle and that doesnt help much.