31 March, 2010 will be the last day of support for VirusScan Enterprise 8.0i
Additionally, March 31, 2010 will be the last day V1 DATs will be transmitted.
On April 1, 2010, McAfee Labs will no longer produce or ship V1 DATs. THIS MEANS THAT ANY V1 ENABLED PRODUCT WILL FAIL TO UPDATE DAT FILES.
Because VirusScan Enterprise 8.0i is reaching EOL and also depends on V1 DATS for signature updates, McAfee recommends moving to the latest supported product version.
Please refer to the following McAfee KnowledgeBase articles for details:
KB60992
List of which products and versions use V1 vs. V2 DAT files; products with custom support through 31-Dec-10
https://kc.mcafee.com/corporate/index?page=content&id=KB60992
KB60404
Basic information on v1 & v2 DAT files (Names.dat, Scan.dat, Clean.dat)
https://kc.mcafee.com/corporate/index?page=content&id=KB60404
KB52201
VSE 8.0i EOL statement, original date: 1 Jan, 2008
https://kc.mcafee.com/corporate/index?page=content&id=KB52201
McAfee Product End of Life (EOL) List and EOL Policy
http://www.mcafee.com/us/enterprise/support/customer_service/end_life.html