Download McAfee Antivirus for Free - till 12/31
A single license of McAfee VirusScan Plus 2009 costs around $40 but you may have it for free via this link. Enter coupon code VSPPROMOCF and click Checkout.
The code is valid through December 31, 2008. You will also receive free upgrades to McAfee software for the next one year.
This release of VirusScan Plus is available for download on Windows 2000, Windows XP and Windows Vista systems only.
Link: McAfee VirusScan Plus 2009