Are you 'the' Justin Frankel? If so, I feel vindicated in my decision :) (which was admittedly controversial among my colleagues at the time because NSIS is so much more 'natural' to use than MSI). I mean if even you find UAC a pain, then it's only normal that those of us with much less insight into the inner workings of NSIS are having a much harder time still...

yes, he's the real deal