Looks like you're confusing the volunteers who answer in this newsgroup
with Microsoft employees. It's been months since I saw any sign that
any Microsoft employees read this newsgroup unless they are already
retired from their Microsoft job. Microsoft has given some of the
volunteers who run this newsgroup the title MVP, but no paychecks to
go along with that title. A number of software companies seldom if
ever have their best employees work at answering the phone; it wouldn't
be a surprise if Microsoft is one of them. Registry scanners are seldom
the best fix for Vista problems, especially when they're used by someone
who doesn't know how to ignore the false positives that often find.
Vista and XP are separate versions of the Windows operating system;
one was not meant to run under the other.
We need more details of your problems, not more complaints about them,
to be able to offer much help with them.
http://support.microsoft.com/kb/555375
http://users.tpg.com.au/bzyhjr/liszt.html