What is ws2ifsl?

The genuine ws2ifsl.sys file is a software component of Windows Socket by Microsoft.
A driver file for the Windows Socket 2 IFS layer, ws2ifsl.sys is necessary for network functionality. It provides your operating system the appropriate parameters for communicating via network protocols. If this file is missing or not functioning properly, nearly every application that requires any type of network access will not function properly. Founded in 1975 in New Mexico, Microsoft is now one of the largest software corporations in the world. Currently headquartered in Washington, the flagship Windows operation system is the most utilized OS in the world.

Ws2IFSL stands for Winsock2 Integrated File System Layer

Ws2ifsl.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if ws2ifsl.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for ws2ifsl drivers in need of updating

Ws2ifsl.sys file information

The process known as Winsock2 IFS Layer or Winsock2-IFS-Schicht belongs to software Windows Socket (version 2.0 Non-IFS Service Provider Support Environment) or Microsoft Windows Operating System by Microsoft (

Description: Ws2ifsl.sys is an important part of Windows, but often causes problems. Ws2ifsl.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 12,032 bytes (88% of all occurrences) or 21,504 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The ws2ifsl.sys file is a Windows system file. The program is not visible. The file is a Microsoft signed file. The service has no detailed description. ws2ifsl.sys appears to be a compressed file. Therefore the technical security rating is 0% dangerous, however you should also read the user reviews.

Recommended: Identify ws2ifsl.sys related errors

Important: Some malware disguises itself as ws2ifsl.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the ws2ifsl.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

seems related to ctfmon
Using Win2000 Pro & have it on my puter. Rootkit Revealer snags when it reaches this.

Summary: Average user rating of ws2ifsl.sys: based on 3 votes with 2 user comments. One user thinks ws2ifsl.sys is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks ws2ifsl.sys is dangerous and recommends removing it.

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Best practices for resolving ws2ifsl issues

A clean and tidy computer is the key requirement for avoiding problems with ws2ifsl. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the ws2ifsl.sys process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

ws2ifsl.sys [all]