Winsock 2 LSP Stack Registry Corruption

This section describes how Winsock 2 LSP stack entries can be corrupted by incomplete application un-installations or spyware removal processes. Corrupted LSP stack entries can be restored or fixed by tools

Because the Winsock 2 LSP stack entries are maintained as Windows registry key values, they can be easily corrupted - stack entries exist but DLL files are missing. There are reasons for this corruption:

If LSP entries are corrupted, Internet applications will not work any more. You need to fix them by a tool or repair them manually.

On a Windows XP system, you can use the netsh command to reset all LSP stack entries back to Windows default values. Here is the netsh command syntax, but I have never used before:

C:\>netsh winsock reset

There is also a nice tool called LSP-Fix that can help you to repair corrupted LSP stack entries. See the next section for details.

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

 References

 PDF Printing Version