Use  the  FIX  command  to  repair  damaged  dictionary  files.   FIX
  describes  any  errors  it  finds and places this output in a listing
  file.  FIX also modifies the dictionary to repair the damage  in  the
  following ways:

   o  By reconstructing corrupt dictionary  directories  and  restoring
      their children to them

   o  By preserving internally consistent  dictionary  directories  and
      objects whose parents are irreparably damaged

   o  By pruning off inconsistent dictionary  objects,  history  lists,
      and directories that cannot be repaired

   o  By rebuilding the free page list

  To fix the main dictionary  file,  you  need  VMS  SYSPRV  or  BYPASS
  privilege.   To  fix a subdictionary file, you need only be the owner
  of the subdictionary file.

  The default dictionary file is SYS$DISK:CDD.DIC.

  Command Syntax:

  FIX [qualifiers] file-specification