Winsock 2 API Architecture

Windows Tutorials - Herong's Tutorial Examples

∟Winsock - Windows Sockets API

∟Winsock 2 API Architecture

This section describes the Winsock 2 API architecture. Winsock applications are interfacing with 3 DLLs: WS2_32.DLL, WSOCK32.DLL and WINSOCK.DLL.

The Winsock 2 architecture described in the Winsock 2 API specification can be illustrated in this diagram:

Winsock 2 API Architecture

As you can see from this diagram, there are 3 DLL (Dynamic Link Library) files installed on a Windows XP system to provide the Winsock API (Application Programming Interface) to all Winsock applications:

WS2_32.DLL - Providing Winsock 2 32-bit API and running on top of a collection of Winsock 2 SPIs (Service Provider Interfaces).
WSOCK32.DLL - Providing Winsock 1.1 32-bit API and running on top of the Winsock 2 API.
WINSOCK.DLL - Providing Winsock 1.1 16-bit API and running on top of the Winsock 2 API.

Table of Contents

About This Book

Introduction to Microsoft Windows

Introduction to Windows Explorer

Introduction to Internet Explorer

"Paint" Program and Computer Graphics

GIMP - GNU Image Manipulation Program

JPEG Image File Format Quality and Size

GIF Image File Format and Transparent Background

"WinZip" - ZIP File Compression Tool

"WinRAR" - RAR and ZIP File Compression Tool

FTP Server, Client and Commands

"FileZilla" - Free FTP Client and Server

Web Server Log Files and Analysis Tool - "Analog"

Spyware Adware Detection and Removal

IE Addon Program Listing and Removal

Vundo (VirtuMonde/VirtuMundo) - vtsts.dll Removal

Trojan and Malware "Puper" Description and Removal

VSToolbar (VSAdd-in.dll) - Description and Removal

Spybot - Spyware Blocker, Detection and Removal

Setting Up and Using Crossover Cable Network

Home Network Gateway - DSL Modem/Wireless Router

Windows Task Manager - The System Performance Tool

"tasklist" Command Line Tool to List Process Information

"msconfig" - System Configuration Tool

Configuring and Managing System Services

Windows Registry Key and Value Management Tools

Startup Programs Removal for Better System Performance

►Winsock - Windows Sockets API

What is Winsock (Windows Socket) API

►Winsock 2 API Architecture

Winsock 2 SPI and LSP Layers

mswsock.dll - Microsoft Windows Sockets 2.0 Service Provider

"netsh winsock show catalog" - Showing Winsock 2 LSP

Winsock 2 LSP and Spyware Trojans

rundlll.dll - Winsock 2 LSP Spyware Trojan

Winsock 2 LSP Stack Registry Corruption

LSP-Fix - LSP Stack Repair Tool

Java on Windows

Glossary of Terms

Outdated Tutorials

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