If you remove/rename <tt>ads.war</tt> <i>before</i> running Limeware, it never creates an <tt>ads/</tt> folder or a <tt>cookies.dat</tt> file. And <tt>ads.war</tt> hasn't come back yet, though I'd check again after upgrading.
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BTW, there's never been any spyware in the Mac version. That was PC only.