/POP
       /NOPOP (default)

    (Applies only to workstations running VWS.) The /POP qualifier
    causes the debugger window to pop over other windows and become
    attached to the keyboard when the debugger prompts for input. The
    /NOPOP qualifier disables this behavior (the debugger window is
    not popped over other windows and is not attached to the keyboard
    automatically when the debugger prompts for input).