What flavor is all a matter of opinion and interests, I have met people who are loyal to certain flavors of it even if it is old school like Suse an swear that it is the best.
Linux is also a fork off of Unix, but if you want to get technical about names you are correct, they all have some similarities just like the human race.
I am aware of 2 of them apps, first time i heard of Xen though, thanks.
What I am attempting to use is a Web App that runs off of an executable, so far wine did not work, have not tried VM or Xen, just not got around to messing with it yet.
Thanks for replying.