avast antivirus software represents complete virus protection, offering full desktop security including a resident shield with anti-spyware technology. Avast Interface is user-friendly and its modules are very easy-to-use. Resident protection (the real-time protection of the operating system), is one of the most important parts of an antivirus program today. avast! features a powerful resident module that is able to detect a virus before it has any chance to infect your computer. File system protection ensures that no virus will be started on the computer. It offers a wide range of settings, such as the possibility to specify that files will be scanned during copying, or that the scanning will include files with given set of extensions only. You can expect 100% detection of In-the-Wild viruses (viruses already spreading between users) and excellent detection of Trojan horses. Avast features a module for the protection of IM (Instant Messaging, chat programs, and a module for the protection of P2P (peer-to-peer) programs. The list of supported IM and P2P programs is extensive with more than 30 programs currently supported.