I've never heard of something not being able to be removed from your system without some digging. Usually you don't even need to worry about finding it yourself. If you have an Anti Virus scanning program, and is kept up-to-date, it should find anything that's out there. If you are a big Peer-to-Peer user, then you might get hit with one brand new. But the AV people have employee's working around the clock to keep ontop of anything that's new on teh market virus/trojan wise. That's why I have my system update the virus scanner every night, and then afterwards scan all my hard drives. Because incase one gets by, then you are usually ok if you do a scan and pick it up. The AV should be able to remove it, or at least tell you what it is so you can go online and search for a removal tool.