After rumors that Microsoft was working on it's own version of Antivirus, brought on by the purchase of Sybari highlighted in the article [story:20050208221748212], MS announced on Friday 13th (of all days) they too would offer a subscription-based Antivirus called OneCare.
ZDNet provides a rather cynical reflection of this news: Microsoft OneCare gets a bashing
For the press release direct from Microsoft, visit: Microsoft to Deliver Automated, All-in-One PC Health Service for Consumers
http://www.antisource.com/article.php/microsoft-onecare-antivirus