New Particle Emitter Download offer question

Hi!
I opened Particle Illusion and there is an offer to d/l new emitters and I’m for all that.
So I folowed the links, and d/l this… Continuum_2021_5a_Particle_Emitters_Windows.exe
It was the only option I could see. In trying to run it, It asks me to uninstall pervious versions. I don’t have Continuum, so do I just proceed? I only anything about PI. Thanks