1.DBG> CANCEL BREAK MAIN\LOOP+10

      This command cancels the user-defined breakpoint set at the
      address expression MAIN\LOOP+10.

    2.DBG> CANCEL BREAK/ALL

      This command cancels all user-defined breakpoints.

    3.DBG> CANCEL BREAK/ALL/USER/PREDEFINED

      This command cancels all user-defined and predefined
      breakpoints.

    4.all> CANCEL BREAK/ACTIVATING

      This command cancels a previous user-defined SET
      BREAK/ACTIVATING command. As a result, the debugger does not
      suspend execution when a new process is brought under debugger
      control.

    5.DBG> CANCEL BREAK/EVENT=EXCEPTION_TERMINATED/PREDEFINED

      This command cancels the predefined breakpoint set on task
      terminations due to unhandled exceptions. This breakpoint
      is predefined for Ada programs and programs that call POSIX
      threads or Ada routines.