*does pick up the tracks of Netscape 8, although it doesn't officially appear in the Applications panel
*doesn't pick up the tracks of Opera 9 beta 2 or others and, curiously enough, it didn't pick up on Opera 5.01 when I installed it briefly recently
*it also didn't pick up on the new AOL Explorer browser
also, everyone goes crazy/nutso over the whole Prefect cleaning deal; well, Prefect files have showed up precisely twice in the whole time I've used ccleaner, and that was during the first clean I had after I reinstalled Windows - after that, no Prefect files show.