Getting hold of Parallel Studio for OpenSource

I'm one the main developers of an Open Source project (DeepSkyStacker) <https://github.com/deepskystacker/DSS>

We currently run code with OpenMP and built on Windows using MSVC but are seriously looking at TBB and Parallel Studio using the Intel Compiler as we want to support MacOS and Linux as well as Windows.

I went to download Parallel Studio for OpenSource projects and found that I was only offered the Linux variant - how can we get hold of the Windows and MacOS version as well please?

Many thanks

David Partridge