Okay, here we obviously have somebody who couldn't get a clue even if he was standing in the middle of a field full of horny clues, at the height of the clue mating season, covered from head to foot in clue pheromone.
Wine is regularly used in business for business purposes, whether the original or the commercialised version called "Crossover" or somesuch. I, as one small example, use Wine to run RF coverage plotting software which is very nice but only available for Windows. I also use it to run some radio programming software which, again unfortunately, is only available for Windows or DOS. Mostly DOS. Fortunately, those are the only packages from the MS hellhole that I need to run on a semi-regular basis. Everything else that I do on computers, business or pleasure, I do using open-source, be it Ubuntu or FreeBSD.
I've played with ReactOS and it's as stable as jelly nailed to the ceiling. It's also a project that is doomed to fail, ultimately. MS have become adept masters of the "embrace, extend, extinguish" strategy - they should, they invented it - and the moment that ReactOS starts to even *hint* at becoming a contender, it'll be snuffed out through a combination of legal attacks, API changes and the usual FUD that MS spreads so lavishly.
*Trybble