Openfire是一个开源即时通讯服务器软件，采用Java开发，基于XMPP（Jabber）协议。Openfire安装和使用都非常简单，并利用Web进行管理。单台服务器可支持上万并发用户。客户端可用Spark搭配，组建企业自己的QQ/MSN交流环境。-Openfire is an open source instant messaging server software, the use of Java development, based on the XMPP (Jabber) protocol. Openfire installation and use are very simple, and take advantage of Web management. A single server can support thousands of concurrent users. Spark can be used with the client, set up their own enterprises QQ/MSN exchange environment.