The article tries to get you to download "autoruns.zip" from their site. That's suspicious. But it seems to be OK. The official Microsoft version is at [1] and the ZIP files compare equal.
If you know the sysinternals tool you want, you can grab it directly from live.sysinternals.com, which is an official microsoft site. e.g. http://live.sysinternals.com/autoruns.exe