It is a bag of shyte
But no more than any other O.S. Microsoft have made. It's just that they've changed so many security functions from XP, that most old applications and drivers (including those bundled with Vista) don't work as expected.

A lot of XP is taken up with code to make older applications that weren't written properly work. Some of this was dropped in Vista (probably to make room for crappy 'neat' functions).
(Kliper Filllets Getting noticed by twats on the internet since, Thu 18 Jun 2009, 10:42, Reply)