I wrote this article to help you remove Aussiewinprizes.com. This Aussiewinprizes.com removal guide works for Chrome, Firefox and Internet Explorer. If you haven`t had to deal with an adware program before, it seems like you will have to now. Judging by the fact you are having trouble with the constant appearance of the Aussiewinprizes.
Article Link: http://virusguides.com/uninstall-aussiewinprizes-com-virus/