Library /sys$common/syshlp/basichelp.hlb Compile time errors, UNLINCREA  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  ERROR - An OPEN statement contains both an UNLOCK EXPLICIT clause  and
  an  ACCESS  READ  clause.   Remove one of the clauses.  Opening a file
  with ACCESS READ means that records are not locked.   UNLOCK  EXPLICIT
  means that all records remain locked until explicitly unlocked.