Don't remove the SULFNBK.EXE file

Wow...how to wreck havoc without having to learn the "art" of virus-writing....totally weird...back in the days of dos, i knew what every file on my computer did...today...take a wild guess....
> A little off topic here.

> I received several emails today telling me
> to do a search for the SULFNBK.EXE file and
> if it is on my computer to delete it. The
> email warnings claim that it is a virus. It
> isn't. Windows needs the SULFNBK.EXE file to
> recover file names longer than eight
> characters.

> I always research any virus warnings before
> forwarding them. Just wanted to let you all
> know about it before, and if, you get the
> same email.

> More details at the link below.

> Have a great one.

> Dennis