Microsoft KB Archive/944164

= Ports and protocols that you can enable or disable in Windows Live OneCare =

Article ID: 944164

Article Last Modified on 11/6/2007

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APPLIES TO


 * Windows Live OneCare

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INTRODUCTION
This article describes the ports and protocols that you can enable or disable in Windows Live OneCare.



MORE INFORMATION
The firewall in OneCare supports TCP, UDP, TCP/UDP, and other network protocols. OneCare has several built-in ports and protocols that you can enable or disable. The following tables list these protocols and their respective ports.

Common programs, their protocols, and their port settings
Notes
 * Firewall

Software or hardware that helps screen out malicious users, viruses, and worms that try to reach the computer over the Internet. Some firewalls also prevent unauthorized programs on the computer from making connections outside.
 * Network protocols

A special set of rules that programs use to communicate over the Internet. The OneCare firewall supports TCP, UDP, TCP/UDP, and other protocols. The protocol that you use depends on the program or hardware service requirements.
 * Ports

A channel for communication between a specific program or service on the computer and another program or service on the Internet or network. By creating a specific connection, the two programs can communicate without interference from other programs. Network ports are identified by numbers ranging from 0 to 65535.
 * Incoming

A connection from a program on another computer on the Internet or network to a program on your computer.
 * Outgoing

A connection from a program on a computer out to another computer on the Internet or network. Such connections can be created by programs for many legitimate purposes but can also be created by malicious programs such as Trojan horses.

Additional query words: ports protocol

Keywords: kbhowto kbinfo kbclientprotocols kbexpertiseinter KB944164

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