Free Anti Virus Software Download List. Here is a best free anti virus software download list to protect your Windows computer. As viruses, trojans, malwares and spywares thread keep on attacking or infecting your computer system. Antivirus software has been essential security software that provides security shield protection for your computer to fight with viruses, trojans, malwares and spywares thread. Without installing antivirus software on your computer, the chances getting infected or attacked by viruses, trojans, malwares and spywares will be very high especially those computers are connected to Internet. Meanwhile, the damages that cause by viruses, trojans, malwares and spywares is unpredictable whether your computer files is corrupted or your computer will be slow as spammers and DDOS operators use your system as a platform for their unsavory business. So, antivirus software is must software to protect their computer. There is a lot anti virus software over the internet, which provides different levels of security protection from viruses, trojans, malwares and spywares. Over here, i have gathers a list of free Antivirus software that can be download freely and protected your computer. Best Free Antivirus Software Download List Avira Anti Vir Personal Free Windows Anti Virus Software. Avira Anti Vir Anti. Virus Free version can be used for personal and non commercial use. It offers reliable security protection to your computer against dangerous viruses, worms, Trojans and costly dialers. Security modules that offer included are Protection from virus worms and Trojans, Anti rootkit, Anti fishing and Anti dialer. Automatic incremental updates antivirus signatures, engine and entire software. Plus offer real time security monitoring for your computer. Now a days we see a lot of people are searching for a good antivirus. No wonder people are searching are the antivirus softwares. Internet Explorer Plugins. Adobe Flash Player 18. Adobe Flash Player 18. Comodo Anti Virus Commercial Free Anti virus Software. Previously is a commercial antivirus product and now converted free antivirus edition for home and. Microsoft Corporation est une entreprise dinformatique et de microinformatique multinationale amricaine, fonde par Bill Gates et Paul Allen. Immunet 3 0 8 Full Edition 2013' title='Immunet 3 0 8 Full Edition 2013' />Reviews updates 1. Avira Anti Vir personal 9. Avira Free Anti Virus 2. AVG Anti Virus Free Edition Famous Free Anti Virus. One of the most popular free Anti Virus software with over 7. Free for personal and non commercial use. AVG anti virus free edition provides basic antivirus and anti spyware protection for Windows. Security features included in the free AVG edition Anti virus, anti spyware and safe surf features. Plus more, offers real time security monitoring and updates virus definition daily. Other AVG Antivirus free edition review updates 1. AVG antivirus 7. AVG Antivirus 8 free 3. AVG antivirus 9 free 4. AVG Antivirus free 2. AVG Antivirus free 2. AVG Antivirus free 2. Home Antivirus Free Antivirus Software For Home User. Avast Home antivirus is one of my favorites anti virus software for personal and non commercial use. Download Cleo Mod Installer Gta San Andreas. Avast is free anti virus software available that provides a complete protection against security threats. This full featured antivirus security package has the following feature Built in Anti spyware, Anti Rootkit, Web shield, Strong self protection, P2. P and IM shield, Anti Virus kernel, resident protection, Network shield, Automatic update, System integration, Windows 6. Integrated Virus Cleaner. Other avast antivirus reviews updates 1. Avast 5 antivirus free. Avast 6 antivirus free. Bit. Defender Free Anti Virus Edition. Top antivirus software comes with on demand scanning and no real time monitoring. Free for personal use and non commercial use. The free Bitdefender edition uses the same ICSA Labs certified scanning engines found in Pro version of Bit. Defender, allowing you to enjoy basic virus protection for no cost at all. Download Bit. Defender Free antivirus. Clam. Win Anti Virus Open Source Antivirus Software. Open source free Anti. Virus come under GPL license. This free anti virus is compatible for Windows 9. Me2. 00. 0XP2. Vista. Security features include high detection rates for viruses and spyware automatic downloads of regularly updated Virus Database, Standalone virus scanner. It does not include an on access real time scanner. Download Clam. Win. Comodo Anti Virus Commercial Free Anti virus Software. Previously is a commercial antivirus product and now converted free antivirus edition for home and commercial use. Comodo Antivirus provides as good as many of the paid Antivirus products. Comodo free antivirus software from which offers real time scanning and automatic updates provides you protection round the clock, email scanning, process monitoring and worm blocking to immediately start cleaning or quarantining suspicious files from your hard drives, shared disks, emails, downloads and system memory. Plus more, the virus definition is update daily and Host Intrusion Detection allows you to intercept viruses, spyware, and other malware before they infect your computer. Comodo Antivirus reviews updates Comodo Antivirus is part of Comodo internet security. Comodo Internet Security. Comodo Internet Security 4. Comodo Antivirus 2. Drive. Sentry Anti Virus and Anti Spyware. Drive. Sentry is free anti virus software for home usage only. It provides free Windows anti virus, anti spy ware and HIPS technologies security suite to protect home user computer away from Malware, virus and Trojan. Plus more, provides real time protection and data encryption facility. Updates Drive. Sentry has been commercial antivirus software. PCTools Antivirus Free Commercial Antivirus Software. PC Tools Anti. Virus Free Edition you are protected against the most nefarious cyber threats attempting to gain access to your PC and personal information. It protects you from Virus, worm, Trojan and has Smart Updates, Intelli. Guard Protection, file guard and email guard. Download PC Tools Antivirus. Blink Personal Free All in One Anti virus Suite. An all in one antivirus suite that integrated multi layered endpoint protection security module. Blink personal Security suite features Antivirus and Anti spyware, Anti root kit, Built in Firewall software protection and Identity protection to protect your computer. Updates Blink Personal is not available download for free anymore. Rising Antivirus Free Anti virus Solution Software. Rising Antivirus Free Edition is anti virus solution provides the same level of detection and protection capability as RISING Antivirus 2. It protects computers against all types of viruses, Trojans, worms, rootkits and other malicious programs. In addition, Rising Application Protection provides a full aspect protection to user account information, such as online bank, online game, MSN, E mail account, Yahoo Messenger and other private information. Plus more, Rising Antivirus is a china antivirus product. Download Rising Antivirus. Cloud antivirus software list Cloud antivirus software is another emerging antivirus solution, which utilize cloud computing and Internet connection to protect your computer against malware threads. Kingsoft Antivirus Free Windows cloud antivirus. Immunet Protect 2. Free Cloud Anti virus Software. Panda cloud antivirus. Comodo cloud scanner. Hitman Pro Free cloud antivirus. Besides that, below is best free antivirus through out the years 1. Best 2. 01. 0 free antivirus software. Best 2. 01. 1 free antivirus software. Hope you enjoy this best free antivirus download list. If you know any free antivirus is free and nice protection for Windows platform. Please let us know in the comment section and share with others. List of TCP and UDP port numbers. This is a list of notable port numbers used by protocols of the transport layer of the Internet protocol suite for the establishment of host to host connectivity. Originally, port numbers were used by the Network Control Program NCP in the ARPANET for which two ports were required for half duplex transmission. Later, the Transmission Control Protocol TCP and the User Datagram Protocol UDP needed only one port for full duplex, bidirectional traffic. The even numbered ports were not used, and this resulted in some even numbers in the well known port number range being unassigned. The Stream Control Transmission Protocol SCTP and the Datagram Congestion Control Protocol DCCP also use port numbers. They usually use port numbers that match the services of the corresponding TCP or UDP implementation, if they exist. The Internet Assigned Numbers Authority IANA is responsible for maintaining the official assignments of port numbers for specific uses. However, many unofficial uses of both well known and registered port numbers occur in practice. Similarly many of the official assignments refer to protocols that were never or are no longer in common use. This article lists port numbers and their associated protocols that have experienced significant uptake. Table legendedit  Official Port is registered with IANA for the application. Unofficial Port is not registered with IANA for the application. Multiple use Multiple applications are known to use this port. Well known portseditThe port numbers in the range from 0 to 1. They are used by system processes that provide widely used types of network services. On Unix like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the well known ports. Well known ports. Port. TCPUDPDescription. IANA status. 0NANAIn programming APIs not in communication between hosts, requests a system allocated dynamic port4NA0. Reserved. Reserved. Reserved. Official. TCPAssigned. TCP Port Service Multiplexer TCPMUX. Historic. Both TCP and UDP have been assigned to TCPMUX by IANA,1 but by design only TCP is specified. Official. Reserved. Reserved. Unassigned. Official. TCPUDPRemote job entry. Official. 6Reserved. Reserved. Unassigned. Official. 7TCPUDPEcho Protocol67Official. Reserved. Reserved. Unassigned. Official. UDPDiscard Protocol9Official. UDPWake on LAN1. Unofficial. Reserved. Reserved. Unassigned. Official. TCPUDPActive Users systat service1. Official. 12. Reserved. Reserved. Unassigned. Official. 13. TCPUDPDaytime Protocol1. Official. 14. Reserved. Reserved. Unassigned. Official. 15. TCPUDPPreviously netstat service11. Unofficial. 16. Reserved. Reserved. Unassigned. Official. 17. TCPUDPQuote of the Day QOTD1. Official. 18. TCPUDPMessage Send Protocol1. Official. 19. TCPUDPCharacter Generator Protocol CHARGEN1. Official. 20. Assigned. File Transfer Protocol FTP data transfer7Official. Assigned. File Transfer Protocol FTP control command781. Official. 22. UDPSecure Shell SSH,7 secure logins, file transfers scp, sftp and port forwarding. Official. 23. TCPAssigned. Telnet protocolunencrypted text communications72. Official. 25. TCPAssigned. Simple Mail Transfer Protocol SMTP,72. Official. 26. Reserved. Reserved. Unassigned. Official. 37. TCPUDPTime Protocol2. Official. 38. TCPUDPRoute Access Protocol RAP2. Official. 39. TCPUDPResource Location Protocol RLP2. Official. 40. Reserved. Reserved. Unassigned. Official. 42. TCPUDPHost Name Server Protocol2. Official. 43. TCPUDPWHOIS protocol2. Official. 49. TCPUDPTACACS Login Host protocol2. Official. 50. TCPUDPRemote Mail Checking Protocol3. Official. 51. Reserved. Official. 51. TCPUDPPreviously Interface Message Processor logical address managementcitation neededUnofficial. TCPUDPXerox Network Systems XNS Time ProtocolimportanceOfficial. TCPUDPDomain Name System DNS7Official. TCPUDPXerox Network Systems XNS clearinghouseimportanceOfficial. TCPUDPXerox Network Systems XNS authenticationimportanceOfficial. TCPUDPAny private terminal accessfurther explanation neededOfficial. TCPUDPXerox Network Systems XNS MailimportanceOfficial. Assigned. UDPBootstrap Protocol BOOTP server 7 also used by Dynamic Host Configuration Protocol DHCPOfficial. Assigned. UDPBootstrap Protocol BOOTP client 7 also used by Dynamic Host Configuration Protocol DHCPOfficial. Assigned. UDPTrivial File Transfer Protocol TFTP73. Official. 70. TCPUDPGopher protocol3. Official. 717. 4TCPUDPNETRJS protocol3. Official. 75. TCPUDPAny private dial out servicefurther explanation neededOfficial. TCPUDPAny private Remote job entryfurther explanation neededOfficial. TCPAssigned. Finger protocol73. Official. 80. UDP4. Hypertext Transfer Protocol HTTP74. Official. 80. UDPQUIC from Chromium for HTTPcitation neededUnofficial. NANAUnassigned. Official. TCPTor. Parkonion routingverification neededUnofficial. UDPTor. Park controlverification neededUnofficial. Any private terminal linkfurther explanation neededOfficial. TCPAssigned. Kerberos74. Official. 90. TCPUDPdnsix Do. D Network Security for Information Exchange Securit sic Attribute Token MapimportanceOfficial. TCPUDPPoint. Cast dotcom1third party source neededUnofficial. TCPWIP message protocolverification neededUnofficial. NANAUnassigned with known unauthorized usefurther explanation needed1Official. TCPUDPNIChost name. Official. 10. 2TCPUDPISO Transport Service Access Point TSAP Class 0 protocol 4. Official. 10. 4TCPUDPDigital Imaging and Communications in Medicine DICOM also port 1. Official. 10. 5TCPUDPCCSO Nameserver4. Official. 10. 7TCPUDPRemote User Telnet Service RTelnet4. Official. 10. 8TCPUDPIBM Systems Network Architecture SNA gateway access server. Official. 10. 9TCPUDPPost Office Protocol, version 2 POP25. Official. 11. 0TCPAssigned. Post Office Protocol, version 3 POP375. Official. 11. 1TCPUDPOpen Network Computing Remote Procedure Call ONC RPC, sometimes referred to as Sun RPCOfficial. TCPVirtual Router Redundancy Protocol VRRP5. Unofficial. 11. 3TCPIdent, authentication serviceidentification protocol,75. IRC servers to identify users. Official. 11. 3TCPAssigned. Authentication Service auth, the predecessor to identification protocol. Used to determine a users identity of a particular TCP connection. Official. 11. 4NANAUnassigned deprecated since June 2. Official. 11. 5TCPUDPSimple File Transfer Protocol75. Official. 11. 7TCPUDPUUCP Mapping Project path servicecitation neededOfficial. TCPUDPStructured Query Language SQL ServicesJargonOfficial. TCPAssigned. Network News Transfer Protocol NNTP,7 retrieval of newsgroup messages5. Official. 12. 3Assigned. UDPNetwork Time Protocol NTP, used for time synchronization7Official. TCPUDPFormerly Unisys Unitary Login, renamed by Unisys to NXEdit. Used by Unisys Programmers Workbench for Clearpath MCP, an IDE for Unisys MCP software development. Official. 13. 5TCPUDPDCEendpoint resolution. Official. 13. 5TCPUDPMicrosoft EPMAP End Point Mapper, also known as DCERPC Locator service,5. DHCP server, DNS server and WINS. Also used by DCOMOfficial. Assigned. UDPNet. BIOS Name Service, used for name registration and resolution6. Official. 13. 8TCPUDPNet. BIOS Datagram Service76. Official. 13. 9TCPAssigned. Net. BIOS Session Service6. Official. 14. 3TCPAssigned. Internet Message Access Protocol IMAP,7 management of electronic mail messages on a server6. Official. 15. 2TCPUDPBackground File Transfer Program BFTP6. Official. 15. 3TCPUDPSimple Gateway Monitoring Protocol SGMP, a protocol for remote inspection and alteration of gateway management information6. Official. 15. 6TCPUDPStructured Query Language SQL ServiceJargonOfficial. TCPUDPDistributed Mail System Protocol DMSP, sometimes referred to as Pcmail6. Official. 16. 1Assigned.