OSNN Junior Addict
Mar 21, 2006
Hello all ... I'm trying to figure out a problem on my father's machine. What he told me was that it just started happening. I'm not sure what he might have installed, etc.

I got over there tonight, and I saw that svchost.exe was running at 90%+ CPU. I installed the SysInternals Process Monitor and found that it was the DNS Client service causing it.

I stopped the DNS Client service, and the CPU Usage went back to normal. Now, I found out that the service uses \windows\system32\dnsrslvr.dll. When I got home to my PC I noticed a difference in timestamps and file size. So, I sent mine over, he installed it, and still the same problem.

The moment you start the DNS Client service, the system maxes out on CPU Usage, even with my copy which doesn't have a problem.

Any ideas on tracking it further?

Admiral Michael

Michaelsoft Systems CEO
Feb 19, 2003
I too had a svchost process eating CPU. But I formatted and installed Vista instead. So I never tracked down the problem.


OSNN Junior Addict
Mar 21, 2006
Alrighty ... I just called him told him to download it and send me the log. Probably won't be until tomorrow.


OSNN One Post Wonder
Feb 11, 2007
I'm having the same problem.

I recently installed some yahoo widget application to be able to send free SMS; Callwave or something and that's when trouble began.
I uninstalled it, rebooted but the same problem keeps returning.
If I end the svchost.exe (network service) that is causing the high CPU usage, other .exes go up in usage and together they max out at 100% usage.

Any help is welcome.

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Perris Calderon wrote on Electronic Punk's profile.
Hey ep!

All good with me, applying for microsoft mvp right now, should have done this a while ago.

Notifications don't work, I only found your response by comming back to hunt up some threads, if you want, give me your email address so we can keep in touch easier, mine is perriscalderon at gmail
Perris Calderon wrote on Electronic Punk's profile.
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS

Been running around Quora lately, luv it there
Electronic Punk wrote on Perris Calderon's profile.
All good still mate?
Hello, is there anybody in there? Just nod if you can hear me ...

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