I'm unsure, but isn't this a programme that promises to boost your internet speed by 5 times over dial up? If so. it will never happen, it'll just try to cache lots of pages to your hard drive and make it seem faster to display them. Perhaps avast! is trying to scan the loaded pages on your connection.
Does the link below refer to your programme?
http://www.earthlink.net/accelerator/faq/#1Living in the E.U. I'd be very worried about this from their terms and conditions
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