What is the best antivirus for xp?

Lots of good ones available, the best ones you have to pay for. One that works as good as most paid for ones and is free is AVG, as long as you keep it regularly updated.More important is ant-spyware such as adaware and spybot

What is the best antivirus for xp?virus scanner

I would suggest that the best antivirus for windows xp is Norton anti virus 07 as it seems very effective and proficent in detecting viruses

What is the best antivirus for xp?anti virus software

I am happy with AVG, but have also used Kaspersky and it seemed pretty good.
E-scan antivirus also best.
To see what the best AV program is you need to look at first, is it free or do you want to pay %26 the answer is that the AV programs you pay for are going to be a lot better than the one which are free or people would not pay for them.

Second you need to look at what test have been done, to see if the AV program your looking at scores high or low for AV detection %26 removal.

I used Nod32 voted the best AV program of 2006, it does all I require with the highest detection %26 removal rate.
The best? There are several of them. If you look at the free ones

Active virus shield, Avast, Avg, Avira, Bitdefender.
This is a free anti virus program for windows and it's very good.