It's cool! I finally found an old XP corporate disk (those things are really valuable) and can now test my Java apps under XP before giving them out to users.
This is what VB is so great for! The only other way I can do that kind of thing is if I had an extra PC laying around, dedicated to XP, but that's unmanageable. This way I can use it, when I'm done I can simply delete it.
I also like that it's faster to install and run XP on my modern PC, under Linux / VB, than it is on a vintage PC that would normally be used with XP itself.
And I like to witness the fact that it's now quicker and easier to install Linux than to install XP.