Questions[svchost](server)

Occasionally on one of my web servers svchost.exe runs around 60-80% running the DNS Client Service. This is on a Windows 2008 Web Server machine (patched up all the way) handling around 10M page views a day and around 5M unique users monthly.

I sometimes see it running on one of two servers in my farm, while handling the same amount of traffic as the other machines so I think it might be okay to disable it... Keep in mind that a server affected by it running close to 90% CPU while the others at 15%.

Now I know it caches the name resolution data but does it need to do it at this expense? I did some research and there are split recommendations on this so here I am asking you guys :) Thanks!

Here are screenshots of the CPU utilization:

I am on Service Pack 2. My CPU is running at 100% with either svchost.exe or services.exe. I know that this was common in XP, server 2000, etc. But now I only seem to find posts for Vista. What is the reason?

Task Manager shows the overall memory usage of svchost.exe. Is there a way to view the memory usage of individual services?

Note this is similar to Finegrained performance reporting on svchost.exe

There's six instances running on my desktop, and probably ten on a server I manage. What is this, and is it vital to system function?

This is something that's always bothered me, so I'll ask the Server Fault community.

I love Process Explorer for keeping track of more than just the high-level tasks you get in the Task Manager. But I constantly want to know which of those dozen services hosted in a single process under svchost is making my processor spike.

So... is there any non-intrusive way to find this information out?