INT 15 - MultiDOS Plus - TERMINATE INTERNAL TASK (KILL THREAD)
AH = 08h
Return: calling task terminated, so execution never returns to caller
Notes:  an internal task must be terminated with this function rather than a
DOS termination function
task's stack space is returned to parent task's memory pool

See also: 1507

1508 - MultiDOS Plus - TERMINATE INTERNAL TASK (KILL THREAD)