What is sdchook.dll?

Sdchook.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if sdchook.dll is a Windows system file or if it belongs to an application that you can trust.

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Sdchook.dll file information

The process known as sdchook belongs to software sdchook or Comcast High-Speed Internet or Charter Pipeline Professor or Web Controls or VAIO Support by SupportSoft ( or (

Description: Sdchook.dll is not essential for Windows and will often cause problems. Sdchook.dll is located in a subfolder of "C:\Program Files"—mostly C:\Program Files\\bin\. Known file sizes on Windows 10/8/7/XP are 45,056 bytes (99% of all occurrences) or 40,960 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The program is not visible. The service has no detailed description. It can change the behavior of other programs or manipulate other programs. The sdchook.dll file is not a Windows core file. Sdchook.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 64% dangerous, however you should also read the user reviews.

Uninstalling this variant: In case of any problems with sdchook.dll, you can go to the support area of the Qwest website, search for an update on the vendor’s website or completely remove Quest QuickCare or Asistente técnico de Telefónica (Control Panel ⇒ Uninstall a Program).

Recommended: Identify sdchook.dll related errors

Important: Some malware camouflages itself as sdchook.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the sdchook.dll 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

However, when installed you can not disable it anymroe without losing your ability to connect. In my opinion you don't need this unless your are having troubles connecting to your ISp, don't use Belgacom Genius. If its part of another program then it is not certain what it does, but it evolves internet activety. (genius sometimes tries to conenct to a server, when I don't allow it my TCP/ip stops working / no surfing or online gaming possible))
  same as above  
This is a part of Belgacom genius and alows you to automatically configure your dsl modem for your ISP, it can be run when your internet conenction doesn't work anymore.
Mine seems to have been installed by Qwest QuikCare for DSL line support. I suspect it is relabelled by a variety of ISPs.
  Alan Winston   (further information)
used to keep dsl modems up. has autorepair
In my case, RoadRunner installs this as part of RoadRunner Medic to troubleshoot connection problems. If you want to use RoadRunner Medic, you gotta put up with this. RoadRunner Medic is an optional program and not necessary for RoadRunner connections.
  Dennis Staley   (further information)
It has been installed by Planet for check and repair of my internet connection. I guess you dont need it when your connection is working fine. I dont know what will happen if you delete it.
From comments seems it is part of Qwest Quickcare
  H. Taylor  
Part of Qwest Quickcare connection troubleshooter. Have found useful occassionally. Assume Qwest at least fairly reliable in choice of software. Assume intrusive on personal networking settings, but that's why one would use it. Certainly not required, but would probably use to save networking settings at least once, then disable unless needed.
It is used by the Qwest Quickcare DSL modem monitoring and restoring system which allows you to diagnosis repair your internet connection.
  Walt A.  
i cant get it to leave! but seems harmless.

Rating chart

Summary: Average user rating of sdchook.dll: based on 14 votes with 10 user comments. 3 users think sdchook.dll is essential for Windows or an installed application. 7 users think it's probably harmless. One user thinks it's neither essential nor dangerous. One user suspects danger. 2 users think sdchook.dll is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving sdchook issues

A clean and tidy computer is the key requirement for avoiding problems with sdchook. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the sdchook.dll process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

sdchook.dll [all]