In Visual Studio 2005. OpenMP didn't come with the Express Edition, but it was possible to download it separately and get it set up, since the compiler itself was OMP-enabled.
Is the same true with Visual Studio 2008? We are all using Standard Edition which similarly supports OpenMP but doesn't come with the libs/headers. Some code we have uses OMP but we don't really want the big cost of upgrading our licenses just for OMP. Is there a way to do it?
I think that you can include the #pragma omp directive and use the /openmp flag during the compilation process in VS 2008.
Details here: http://msdn.microsoft.com/en-us/library/tt15eb9t.aspx
If you can get a hold of the files omp.h, its corresponding library files vcomp.lib, vcompd.lib and the redistributable libraries which correspond to the libs (the directory with the DLLs and the manifest) then there's nothing to stop you from linking to them and using them.
The files probably need to match exactly to the version of VS you have. i.e. it probably matters if you have 2008 or 2008 SP1.