title: Visual Studio C++ and OpenMPI in windows: missing files.h
body: <p>I've just correctly installed Visual Studio Express C++ and OpenMPI.
  I've added the path to PATH variable:</p>
  
  <pre><code>C:\Program Files\OpenMPI_v1.5.5-win32\bin;
  C:\Program Files\Microsoft Visual Studio 10.0\VC\bin;
  C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE;
  C:\Program Files\Microsoft Visual Studio 10.0\VC\include
  </code></pre>
  
  <p>and I've written a simple program in MPI on visual c++ express.
  The problem is that when I try to compile from prompt dos</p>
  
  <pre><code>mpicxx -o mpi mpi01.cpp
  </code></pre>
  
  <p>it tells me that there are a lot of missing files.h (no such file od directory) which are all inside
      C:\Program Files\Microsoft Visual Studio 10.0\VC\include
  But, as I've just said, I've included this in PATH.
  Why does it miss them all?</p>