I have used Lop's uninstall programs and tried adding and removing other Lop software, even though I never installed any. The fact is simply that if you use ad-aware or spybot, etc after installing Messenger Plus to get rid of the adware, you won't be able to remove it. I wish I could, but it comes back every time I remove it with Lop's uninstallers or by installing Messenger Plus.
