addclass.exe - Useless
Manual removal instructions:
Though the code is very different between variants, they are all used to redirect users to coolwebsearch.com and other sites affiliated with its operators.
Suspected to be installed by pop-ups exploiting security holes in IE.
The script may open mostly porn pop-ups if it thinks the page being viewed is porn-related.
by NightWatcheraddclass.exe Dangerous Rating: 5 out of 5
My PC had gotten a bad rootkit that my ISP antivirus software (powered by McAfee) could not detect, nor could fix.
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I haven't had any problems since, and I'm extremely grateful.