The WPAD protocol only outlines the mechanism for discovering the location of this file, but the most commonly deployed configuration file format is the proxy auto-config format originally designed by Netscape in 1996 for Netscape Navigator 2.0.
WPAD协议仅概述了发现该文件位置的机制，而最常被部署的文件格式是最初由网景在1996年为Netscape Navigator 2.0设计的代理自动配置格式。