Fuck you, Microsoft. That's bullshit. I hate scvhost with a passion. Probably because it runs 20 instances at once, when it should only be one.
Yeah... that can kinda' get annoying. On the other hand, it sometimes makes identifying which service is buggering up a much simpler task. I still haven't found (okay, fair jab, I haven't looked either) a monitoring program that displays what each individual service is drawing on, resource wise. Process Explorer will tell you what services each individual scvhost is governing, but not what the individual services are chewing on.
Task manager is, of course, a useless sack of crap. That is also ugly.
@Tiru: It's just the process that runs your services. Firewall, automatic updater, audio stuff, LAN, etc., so forth, so on. Everything under the service thingy in admin tools.