>>It seems it from china? Is it safe and does it really do everything (only took a glance at the doc's)?
Highly recommended product used by me since 2010.
FWIW, author has fixed the known bugs Microsoft shrugged off including some really annoying longstanding ones like phantom breakpoints, also some tweaks to work better on Windows 7 and beyond.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1