Got a false positive on a full system scan today on game files, reporting as Win32Trojan Dropper Delf. These files are an integral part of the MMORPG Perfect World, and have been on my system with no ill effects for more than a year. I uploaded 2 that were actual files...the 3rd was only a shortcut file, and the scanlog.
I am 99% sure that this is a false positive due to the patcher being specialized downloader.