ESET NOD32 Antivirus for NT/2000/2003/XP/Vista (30 Day Trial) v3.0.563
Good protection offered in standard install mode. When the user runs the software in advanced mode, there is even a better, stronger, more comprehensive scanning available. System resources are kept to an absolute minimum, so the user can continue to use PC with the minimum of disruption and with the satisfaction that their PC is fully protected.
<br/>The ESS - security system package is well worth a look as well.
