Condition_Values_Returned

   TPU$_SUCCESS       Initialization was completed successfully.
   TPU$_FAILURE       General code for all other errors during
                      initialization.
   TPU$_INSVIRMEM     Insufficient virtual memory exists for the
                      editor to initialize.
   TPU$_              No routine has been established to perform
   NOFILEROUTINE      file operations.
   TPU$_NONANSICRT    The input device (SYS$INPUT) is not a
                      supported terminal.
   TPU$_RESTOREFAIL   An error occurred during the restore
                      operation.
   TPU$_SYSERROR      A system service did not work correctly.