Adware firm 180solutions launched a campaign Monday to notify adware recipients that their computers have ad-serving software installed in them, MediaPost reports. Pop-ups will inform all of the firm's 20 million users that they have 180search Assistant or Zango Search Assistant installed and that they would receive two to three ads a day in exchange for free content. They also contain uninstall instructions. The campaign is part of an effort to clean up the firm's image in the wake of the recent wave of anti-spyware/adware measures. In recent months it has filed lawsuits against distributors it says were installing ad-serving programs without first obtaining consumers' consent, it has already severed ties with more than 400 distributors this year.