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▀ The packet passed to Subfunction 01H consists of five bytes. The first
  byte contains the level, which should be 00H for MS-DOS versions 2 and 3.
  The following four bytes contain the segment:offset of an ASCIIZ path-
  name, which may not include wildcard characters. If the specified file
  exists, it is added to the print queue.
 
▀ The * and ? wildcard characters may be included in a pathname passed to
  Subfunction 02H, making it possible to delete multiple files from the
  print queue with one call.
 
▀ The address returned by Subfunction 04H points to a list of 64-byte en-
  tries, each containing an ASCIIZ pathname. The first pathname in the
  list is the file currently being printed. The last entry in the list
  is a null string (a single 00H byte).
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