from The Windows Club -forum:
"Fortinet Security Suite now freeware (av, as, fw- Windows 2000- Windows 7 and Windows Server 2003, 2008)
Typically, free security products include a single feature per release: a free firewall, for example, or free antivirus. But Fortinet, a network security provider, said it will offer a robust set of features inside a security suite it will make available free to consumers.
This product has been around a while but is now offering an entire suite for free. In older tests the product did very well against malware. It has won several VB100 awards, FWIW." Fortinet, Inc. : FortiClient Endpoint Security
i have done some tests on Fortinet Security Suite on Vista SP1 with UAC off: Fortinet Security Suite, firewall tested ! - Windows Help Forum
i have not installed it under Windows 7 yet, but the results would probably be similar...