1.DBG> CANCEL TRACE MAIN\LOOP+10
      This command cancels the user-defined tracepoint at the
      location MAIN\LOOP+10.
    2.DBG> CANCEL TRACE/ALL
      This command cancels all user-defined tracepoints.
    3.all> CANCEL TRACE/TERMINATING
      This command cancels a previous SET TRACE/TERMINATING command.
      As a result, a user-defined tracepoint is not triggered when a
      process does an image exit.
    4.DBG> CANCEL TRACE/EVENT=RUN %TASK 3
      This command cancels the tracepoint that was set to trigger
      when task 3 (task ID = 3) entered the RUN state.