I need to find a list of good portable antivirus. Rightnow my friend referred me to use Clam Win Portable AntiVirus on Windows. I had made a copy of that on my usb drive. It scans and to some extent it work better. But to some extent I am simply not satisfied with this. I had seen a number of antivirus which work from usb better for Windows. It is helps to secure a system more in case if the antivirus is corrupted due to infection. Are there any better portable antivirus in comparision to Claim Win. I found this easy to use because I am carrying this on a cd. The scan is too basic and I think it is not enough to capture major viruses. Just because of regualar virus definition it become easier to capture threats. Anyhow this is just a copy of Sstandalone Virus Scanner. I am ready to stick with it if this is better and if there much better than this please provide the information it setup here. Thanks.