I'm running Mathematica 9 in a 64 bit Windows 8.1 laptop. I'm having no luck getting  C compilation to work.

    Needs["CCompilerDriver"]
    Compilers[Full]  

returns nothing and 

    Compilers[]

returns nothing

`$Packages` shows `CCompilerDriver` entries

`$ContextPath` has ``CCompilerDriver` `` as its first entry

Microsoft Visual Studio Professional 2013 is installed

Intel Parallel Studio XE for Windows is installed containing
Intel C++ Composer XE

Any hints?