Int 7F Fn E2 - Alloy Mw386 - Switch To New Dos Task [N]
AH = E2h
AL = DOS process number (from AH=E1h)
Return: CF set on error (invalid process number or caller not foreground task)
Notes: specified task becomes the foreground task and current task is placed
in the background
may only be called by a foreground task
See Also: AH=E0h,AH=E1h