Windows MMX Node to farm compressed plots is available here:
https://github.com/madMAx43v3r/mmx-binaries/releases
Windows GPU plotter (Nvidia) here:
https://github.com/madMAx43v3r/mmx-binaries/tree/master/mmx-cuda-plotter/windows
Windows CPU plotter here:
https://github.com/madMAx43v3r/mmx-binaries/tree/master/mmx-cpu-plotter/windows
Windows ProofOfSpace here:
https://github.com/madMAx43v3r/mmx-binaries/tree/master/mmx-chiapos/windows
Please take a look at the respective READMEs, most importantly the -M parameter for the GPU plotter.