I've said it before (but it got deleted) and I'll say it once more (even if it gets deleted again), all you're out for is attention. You don't care about getting this resolved, you like the attention. And now you're just being facetious.
As I said before, EVERY program that writes to the registry always leave some small piece behind. And as for that "code" that prevents you from reinstalling the trial, you will never find it. Why? Not because they use it to track your movements online (are you worried about something?), but because they only let little children like you play with their toys just so long before you have to either buy them or "give them back". So there are cracks out there. Big whoop. That's the same with any software available. But why should they make it any easier to use their software without buying it? The trial version leaves something behind that short of a format/reload you're not going to get rid of. If that upsets you, get over it. And get over yourself. Stop being such a crybaby and just accept that they won't tell you how to remove the portion of setup that prevents reinstalling it past the 30-day trial. Grow up and get a life.
And, how do I know that this unknown (what I DIDN'T find) "left-behind" code is ONLY to prevent the reinstallation. I don't know Alcohol. I don't trust Alcohol. I don't LIKE Alcohol and they have given me a LOT of reasons to both dislike them and distrust them and I want their crappy, malignant code off my computer.
If you don't trust Alcohol, why did you install their software in the first place? You made a choice. If you didn't like their policy, you shouldn't have installed it to begin with.
Finally, my sincere apologies to the moderators if they feel this post steps over the line, but it needs to be said. I would have let it go on the last post, but you felt it was out of place and I accepted your decision at the time, but that in no way diminished the necessity of it. And if you feel this is out of place here, so be it I'll simply PM it to him, because he needs to read what I just wrote. That's my 2-cents worth.