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I'll assume you've already done the standard virus scans, etc. If not, I'd start there. It could be one of those DNS poisoning malware programs that might be doing it? Is the machine using campus or local DNS servers? Jon Galbreath MCSE/Security+ Systems Administrator International Studies and Programs Ph: 517-884-2144 [log in to unmask] On Jul 17, 2009, at 2:57 PM, Al Puzzuoli wrote: > Having an issue on a Vista Business box. Long story short, a case of > very high CPU utilization. I tracked the culprit down to the DNS > client > service (Dnscache), but that's only half the battle. Now that I know > Dnscache is the offending service, what to do about it? This > machine is > part of my domain. As far as I know, no other machines on the domain > are exhibiting the same issue. I tried doing an ipconfig /flushdns, > but > that didn't matter. > > Anyone have ideas as to what might cause this and what I could do to > fix > it? > > Thanks, > > > > Al Puzzuoli > > Michigan State University > > Information Technologist > http://www.rcpd.msu.edu > > Resource Center for Persons with Disabilities > > 120 Bessey Hall East Lansing, MI 48824-1033 > > 517-884-1915 >