Configuring the proxy settings for WinHTTP-based applications programmatically using Proxy Auto-Configuration (PAC) file
A description of the Web Proxy Auto Detect (WPAD) feature The WPAD feature lets services locate an available proxy server by querying a DHCP option or by locating a particular DNS record. For more information about the advantages and disadvantages of using DNS instead of DHCP for WPAD, click the following article number to view the article in the Microsoft Knowledge Base: 816320 How to configure firewall and Web proxy client Autodiscovery in Windows Server 2003 The WPAD protocol works as follows: Using the DHCP and/or DNS network protocols, the URL of a Proxy Auto-Configuration (PAC) file is discovered. […]
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