What is wlchtc.dll?

Wlchtc.dll is a browser extension for Internet Explorer. This add-on enables several additional functions for Internet Explorer. You can disable it through the Extras menu (key combination Alt + X) under Manage Add-ons. The following paragraph provides more information about Windows Live Call Click-to-Call BHO.

Click to Run a Free Scan for wlchtc.dll related errors

Wlchtc.dll file information

The process known as Windows Live Call Click-to-Call BHO belongs to software Windows Live Call or Windows Live or Windows Live Essentials or Beta de Windows Live or Windows Live Call Click-to-Call BHO by Microsoft (

Description: Wlchtc.dll is not essential for Windows and will often cause problems. The file wlchtc.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 75,272 bytes (37% of all occurrences), 73,072 bytes, 73,040 bytes or 72,024 bytes. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include 5C255C8A-E604-49b4-9D64-90988571CECB. The program has no visible window. It is able to monitor web browsers. The file has a digital signature. The service has no detailed description. The wlchtc.dll file is not a Windows core file. The process can be uninstalled in the Control Panel. Therefore the technical security rating is 51% dangerous; however you should also read the user reviews.

Uninstalling this variant: If any problems with Windows Live Essentials or Windows Live Call occur, you can also do the following:

Recommended: Identify wlchtc.dll related errors

Important: Some malware camouflages itself as wlchtc.dll. Therefore, you should check the wlchtc.dll process on your PC to see if it is a threat. If Windows Live Call Click-to-Call BHO has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


User Comments

Type: BHO; CLSID: {5C255C8A-E604-49b4-9D64-90988571CECB}, Name: Click-to-Call BHO; Filename: wlchtc.dll; Location: %ProgramFiles%\Windows Live\Messenger; Description: Windows Live Messenger addon
  wlchtc   (further information)

Summary: Average user rating of wlchtc.dll: based on 1 vote with 1 user comment. One user thinks it's neither essential nor dangerous.

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Best practices for resolving wlchtc issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active wlchtc process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the wlchtc.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. 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.

Other processes

wlchtc.dll [all]