I tend to agree with Mr.Bill. However, many of the
problems are being seen on servers, particularly those
running IIS and Terminal Services.
It still amazes me to see how many people will just go
ahead and apply it to all of their production servers
(including DC's, mailservers, and other mission critical
servers) without testing it first. Some do not even opt to
back out by archiving, or even perform a backup beforehand.
Don't be so trusting, people!