HELPLIB.HLB  —  RMU72  COSI_ERRORS, PROTERR
  Error encountered during attempt to modify protection of a file

  Explanation:  An error was  encountered  during  an  attempt  to
  modify the protection of a file.

  User Action:  Examine the secondary  message  to  determine  the
  reason  for  the  failure.   You  may  not  have  the  necessary
  privileges to modify the protection for that file.
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