The Automatic Web Proxy Detection protocol is used by a client to determine a URL from which to download HTTP, proxy, and other configuration information. It is typically used by Web clients to locate nearby (caching) Web proxies.

The RFC for Automatic Web Proxy Detection is stored by the Internet Engineering Task Force (IETF).

For information on Automatic Web Proxy Detection, see Web Proxy Auto-Discovery Protocol draft-cooper-webi-wpad-00.txt .

For Microsoft licensing information, see Published Protocols and Royalty-Free License on Microsoft Developer Network (MSDN).