Hello all. I am trying to run the latest MPICH-3.0.3 on Linux and Windows. There are no problems with building MPICH on Linux. Some difficulties with running are not so important. But building on Windows became a great deal problem (I use Windows 7, MS VS 2010, Visual Fortran XE 2011) . Direct implementation the instructions from the user guide gave no results. The script winconfigure.wsf prints the messages like ERROR: 67 definitions n (156 instances of unhan Unhandled @foo@'s: @MPI_COUNT_DATATYPE@, Invalid format in mpich Version file. Expected: "MPICH_VERSION_NAME MPICH_VERSIO N" format Unhandled definitions PACKAGE PACKAGE_URL ROMIO_BG Some header files like glue_romio.h are absent in the directory /mpich-3.0.3. They are to be downloaded from the internet. The file mpi.h generated by the script has simbols like "@" which are not recognized by the VS. Some header files do not have the correct end of file. What is the reason of such situation? Please help.