Heh, why ppl always jump so fast on "garbage" files as soon as they fall behind competition. It's not like you can "desinfect" trojans and break them like it used to be in the file infectors era, DSL and cable connections are now almost 100% error free compared to crappy 56k full of errors and packet loss. Where the hell all these "garbage" comes from? If you ask me it's just an lame excuse for AVs that suck and just can't get over that fact. Why can avast! score good, yet ALWIL guys still sometimes have slow samples adding and similar administrative problems, Dr Web which has oh and so heuristics, hourly updates and god knows what is still worse in lots of points?
Same for F-Prot. Long history and developement, recently a very good dev joined their team, yet they still just can't make any visible progress. Then there is AVIRA on the other side, lets face it, they were pretty lame like year and a half ago, AntiVir 6 was like ancient software with it's non incrimental updates and quiet crappy detection. But look it now, probably the best heuristics, they offer hourly updates and they've beaten pretty much all vendors hands down in pretty much all tests done to date. Why can AVIRA actually show the progress and improvements and others can't? Garbage files, right...
Same goes for avast!. It's not THE best but constantly achieving ADVANCED rating and also improving in proactive field without any heuristics does show that devs can keep up a certain level of quality. Garbage files pheh...