receive any updates for these retired engines. In order to make sure your Antigen and Forefront products continue to scan efficiently and effectively for malware , any customers running the AhnLab, CA, or Sophos engines must these engines before Dec. 1, 2009 and select from the new set of five engines Authentium, Kaspersky, Microsoft, Norman, and VirusBuster. Antigen for SharePoint 8.0 and Antig