What is blspc.dll?

The genuine blspc.dll file is a software component of AT&T Pop-Up Catcher by AT&T.
Blspc.dll is a DLL (Dynamic Link Library) file that belongs to the AT&T Pop-Up Catcher, an ad-blocker that eliminates pop-up ads from showing up in browser windows. DLL files store data, code and resources needed by one or more programs in order to function correctly. This is not an essential process for Windows and can be disabled if known to create problems. AT&T Pop-Up Catcher is a free utility tool designed to improve the overall internet surfing experience by automatically detecting and reducing online advertising. Pop-Up Catcher Manager provides options to enable or disable the service, set sounds for when a pop-up is found, set keyboard hotkeys to enable/disable a pop-up and whitelist sites to allow pop-up windows from. A slight reduction in overall system performance has been reported by several users using this program. AT&T Inc. is an American multinational telecommunications corporation, which was founded in 1983. It was formerly called the Southwestern Bell Corporation till 1995. It can indirectly trace its origin back to the original Bell Telephone Company founded by Alexander Graham Bell after he invented the telephone. Today, AT&T is headquartered at Whitacre Tower in Dallas, Texas. AT&T is the largest provider for cellular telephones in the United States.

BlsPC stands for Bellsouth Pop-up Catcher Module

Blspc.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 Blspc Module.

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

Blspc.dll file information

The process known as Blspc Module belongs to software AT&T Parental Controls or Blspc Module or BellSouth Pop-Up Catcher by AT&T (

Description: Blspc.dll is not essential for Windows and will often cause problems. Blspc.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 1,433,600 bytes (27% of all occurrences), 1,437,696 bytes, 192,512 bytes or 274,432 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 15C9938F-CB96-496D-800A-B827F2E34EA1. The program has no visible window. Blspc.dll is able to change the behavior of, or monitor Internet Explorer. The service has no detailed description. The blspc.dll file is not a Windows system file. Blspc.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 67% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you have any problems with blspc.dll, you may want to safely remove the program using the uninstall program of AT&T Pop-Up Catcher or AT&T Parental Controls (Control Panel ⇒ Uninstall a Program).

Recommended: Identify blspc.dll related errors

External information from Tony Klein:

Important: Some malware camouflages itself as blspc.dll. Therefore, you should check the blspc.dll process on your PC to see if it is a threat. If Blspc Module 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

believe its Bellsouth's POP-UP cathcher which works quite well - catches nearly all pop-ups
part of bellsouth popup program
  Linda Gourieux  
its a piece of shit that ATT Parental Controlls use.

Summary: Average user rating of blspc.dll: based on 2 votes with 3 user comments. One user thinks it's neither essential nor dangerous. One user thinks blspc.dll is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving blspc issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active blspc process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the blspc.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 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.

Other processes

blspc.dll [all]