Windows Sockets规范以U.C. Berkeley大学BSD UNIX中流行的Socket接口为范例定义了一套Microsoft Windows下网络编程接口。它不仅包含了人们所熟悉的Berkeley Socket风格的库函数；也包含了一组针对Windows的扩展库函数，以使程序员能充分地利用Windows消息驱动机制进行编程。

-Windows Sockets specification to the University of UC Berkeley' s BSD UNIX in the popular definition of Socket Interface for an example of a set of network programming under Microsoft Windows interface. It not only contains the familiar style of the Berkeley Socket Library Functions　also includes a set of Windows for the expansion of library functions to enable programmers to make full use of Windows message-driven programming mechanism.