Wi-Fi Protected Setup is an optional certification program from the Wi-Fi Alliance that is designed to ease the task of setting up and configuring security on wireless local area networks. Introduced by the Wi-Fi Alliance in early 2007, the program provides an industry-wide set of network setup solutions for homes and small office (SOHO) environments.
     
Wi-Fi Protected Setup enables typical users who possess little understanding of traditional Wi-Fi configuration and security settings to automatically configure new wireless networks, add new devices and enable security. Products that are Wi-Fi CERTIFIED for Wi-Fi Protected Setup are expected to appear on the market during the first quarter of 2007.

Detailes about Wi-Fi Protected Setup, please access to http://www.wi-fi.org/files/kc_80_20070104_Introducing_Wi-Fi_Protected_Setup.pdf.