Is it possible this DISQUS site has something on my computer that I'm not aware of?
Of course it is possible.
How do you suppose DISQUS recognizes you when you visit associated websites, and keeps your replies recorded, and accounts for sites, blogs, and other individuals you may interact with?
You gave DISQUS permission to keep such records at their site, and to place persistent cookies on your machine, mostly in your browser's cache, so that they can recognize you when you login or browse to associated sites, and both they and you can interact with your activity in blogging and responding.
http://help.disqus.com/customer/portal/art…nabling-cookies
It's part of the service they provide.
But cookies are like any other scripting code… they can get messed up and/or might have been written poorly in the first place.
It's even possible that the "solution" DISQUS told you it had accomplished, and the resultant success you experienced was that of re-writing their cookies, and pushing out a fresh batch to your machine.
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While this is probably not a malware situation, corrupted cookies can appear to behave like malware.
Here's an article from 2005 about persistent cookies.
http://www.edbott.com/weblog/2005/01/how-t…acking-cookies/
Of course, if you followed the suggested course of action included in the article, you would not be able to benefit from your membership with DISQUS until you re-endabled the features and possibly logged in manually to re-set your active participation.
But that was 7 years ago, and cookies of all types have become more sophistocated and resilient.
No guarantee that using those suggestions will be successful in cleaning your machine at this point in evolution of online interactions.
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And yes, regardless of where you browse, expect a high level of svchost activity because of:
there are all kinds of cookies and scripts running from both Disqus, partners, and from the hosting site where the comments are being made
Yes, DISQUS will send quiries to determine if a site is compatible with its services and try to connect you if it is, even if it is not.
I imagine you want to continue using DISQUS.
That's your choice, and I must say that the advantages for such activity seem attractive for folks who may be interested in this venue.
I do hope you will post back with additional information you may gain from your research about javascript and persistent cookies, and any more help you may receive from DISQUS directly.
Could be an education for some of us here, and helpful to others of our Members and readers who may have encountered similar difficulties.