Like you say, you need to have Windows either installed as a Dual Boot (Bootcamp) or you’ll need virtualization software that allows you to run windows in a software based computer of sorts.
Virtualization options are VMware, Oracle Virtualbox, Microsoft Virtual PC (Might be sunsetted). The trickiest part when you’re running a virtual machine is getting the networking setup in such a way that it works. Once it’s setup, you’re goo though.
I haven’t heard of UNEX before, I wonder if it’s similar to WINE on Linux. If so, you could try it… if it doesn’t work out of the box, getting it to work probably won’t be trivial.
Another option is to buy a cheap Windows laptop and be done with it. The you don’t have to rough up your Mac at the track…