A task which is started by typing RUN filename may be aborted by typing ABORT If one wishes to abort an installed task(ie one which is started by just typing a 3 character name, ie PIP) type ABORT taskname In either case if /PMD is appended to the line a post-mortem dump of the task is forced. If a task has a file open when it is aborted, the file will be LOCKED. The file must be UNLOCKED with PIP before it can be used again. For information on unlocking files, type HELP PIP UNLOCK