Wireless Zero Configuration

Wireless Zero Configuration (WZC), also known as Wireless Auto Configuration, or WLAN AutoConfig, is a wireless connection management utility included with Microsoft Windows XP and later operating systems as a service that dynamically selects a wireless network to connect to based on a user's preferences and various default settings.[1][2] This can be used instead of, or in the absence of, a wireless network utility from the manufacturer of a computer's wireless networking device. The drivers for the wireless adapter query the NDIS Object IDs and pass the available network names (SSIDs) to the service. The service then lists them in the user interface on the Wireless Networks tab in the connection's Properties or in the Wireless Network Connection dialog box accessible from the notification area. A checked (debug)[3] build version of the WZC service can be used by developers to obtain additional diagnostic and tracing information logged by the service.

Overview

Wireless Zero Configuration was first introduced with Windows XP. In Windows Vista and Windows 7, the service that provides equivalent functionality is called "WLAN AutoConfig". It is based on the Native Wi-Fi architecture introduced in Windows Vista.

Initially, there was no Wireless LAN API in Windows XP for developers to create wireless client programs and manage profiles and connections. After the release of Windows Vista, Microsoft released KB918997,[4] which includes a Wireless LAN API for Windows XP SP2. It was later integrated into Windows XP Service Pack 3.

See also

References
  1. "Windows XP Wireless Auto Configuration: The Cable Guy, dx". TechNet. Microsoft. November 2002.
  2. Weiss, Aaron (January 12, 2006). "Windows Wireless Zero Configuration: Five Steps to Sanity". Article on problems with WZC connecting to unwanted APs, etc., and workarounds
  3. "Checked Build of Windows". MSDN. Microsoft. Retrieved 29 July 2013.
  4. "Developers cannot create wireless client programs that manage wireless profiles and connections over the Wireless Zero Configuration service in Microsoft Windows XP Service Pack 2 (SP2)". Support. Microsoft. December 5, 2006. Archived from the original on December 13, 2006.
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