// ==UserScript==
// @name          WinSite.com Interstitial Skip
// @description   Remove the interstitial ad handler for download links
// @namespace     http://www.gozer.org/mozilla/greasemonkey/
// @include       http://www.winsite.com/bin/info?*
// ==/UserScript==

for(var i = 0; i < document.links.length; i++)
  if(document.links[i].href.indexOf('/dl.winsite.com/') != -1)
    if(document.links[i].hasAttribute('onclick'))
      document.links[i].removeAttribute('onclick');