Rogue applications are applications that rather than remove spyware, provide false positives, distribute malware or spyware, advertise, or provide useless uninstallers. The main point is that rogue applications are useless and eat up system resources.
RogueRemover Pro has the acclaimed realtime RogueMonitor which will alert you if you want to download a rogue program. And, if you already did download such a rogue application, RogueRemover PRO will let you remove it with a simple push on a button. Furthermore, it has the option to immunize your computer against you visiting a rogue website ever again.