BitDefener is an antivirus software suite developed by Bucharest-based software company SOFTWIN. It was launched in November 2001, and is currently in its tenth version. BitDefender replaced SOFTWIN's earlier AVX (AntiVirus eXpert) product range. The BitDefender range includes antivirus products for home users, businesses, enterprise users and Internet service providers. Home editions support Microsoft Windows, Symbian OS and Windows Mobile; business and enterprise editions support Microsoft Windows, Linux and FreeBSD. The current version of the security suite includes antivirus, anti-spyware, firewall, e-mail spam filtering and parental control components. A free basic online scan is offered via the BitDefender website.