I am new to the Windows Server 2008, the Windows HPC Pack, and Visual Studio. I have a 4 node System with the aforementioned OS, SDK, and C/C++ IDE. I would like to build a simple MPI application to check that everything is running, however, I don't seem to be able to find the MS MPI header file or shared library. I know that under The Compute Cluster pack mpi.h was under C:\Program Files\Microsoft Compute Cluster Pack\Include and the libraries were under the Lib directory. I've searched and I can't seem to find the header files or the libraries needed to compile and link an MPI application. Can anyone tell me where I can find these files or what I need to install?