Hi, is it correct that MPI_Win_free should free the memory allocated in MPI_Win_allocate_shared ? MPI_Win_free (Page 416, Line 5-6) specifies this only for memory allocated by MPI_Win_allocate. I think that an additional reference to MPI_Win_allocate_shared is missing also on Page 420, Line 31, Page 448 Line 25, Page 609 Line 31, Page 613 Line 1, Page 614 Line 9, Page 614 Line 31. Hubert