2.5.4.3 LOAD Command
  The LOAD command makes an object module available for
  execution with the RUN command. You can only load object
  files created by VAX BASIC.

  The LOAD command accepts multiple device, directory, and
  file specifications. The LOAD command deletes all previously
  loaded object files; therefore, to load several files at the same
  time, you must separate the file specifications with a plus
  sign (+). Multiple file specifications separated with commas
  cause each file to be loaded separately, thereby deleting the
  previously loaded file.

  If you do not specify any file specification, the LOAD com-
  mand erases any previously loaded object files.
  LOAD OLD1 + OLD2 + OLD3
  Ready
  RUN

  The previous example loads the files OLD1.OBJ, OLD2.OBJ,
  and OLD3.OBJ for execution. These object files are not linked
  with the current program or executed until you issue the
  RUN command. Therefore, run-time errors in the loaded
  modules are not detected until you execute the program.

  Each device and directory specification applies to all following
  file specifications until you specify a new directory or device.
  For example:
  LOAD DUA1:[SMITH]PROG3+[JONES]PROG4+DUA2:PROG5

  This command loads three object files:

  .
        PROG3 from the directory SMITH on the device DUA1:
  .
        PROG4 from the directory JONES on DUA1:
  .
        PROG5 from the directory JONES on DUA2: