What is iesdsg.dll?

Iesdsg.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 Site Guard.

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

Iesdsg.dll file information

The process known as Site Guard belongs to software Spyware Doctor by PC Tools ( or (

Description: Iesdsg.dll is not essential for Windows and will often cause problems. Iesdsg.dll is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of the user's profile folder—typically C:\Program Files\Spyware Doctor\tools\. Known file sizes on Windows 10/8/7/XP are 825,528 bytes (31% of all occurrences), 272,384 bytes and 9 more variants. 
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 5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB. The program is not visible. Iesdsg.dll is able to monitor web browsers. The service has no detailed description. The file is not a Windows core file. The file is a Verisign signed file. Iesdsg.dll is certified by a trustworthy company. Iesdsg.dll is able to record keyboard and mouse inputs, monitor applications and manipulate other programs. Therefore the technical security rating is 51% dangerous, however you should also read the user reviews.

Uninstalling this variant: In case of problems with iesdsg.dll, you can also look for help from the software company Pctools, update the program to the latest version or completely remove Spyware Doctor (Control Panel ⇒ Uninstall a Program).

Recommended: Identify iesdsg.dll related errors

External information from Tony Klein:

Important: Some malware camouflages itself as iesdsg.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the iesdsg.dll process on your PC to see if it is a threat. If Site Guard 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

Part Spyware doctor site guard
This error occurs as the BHO becomes corrupt. Just close down the SD and delete the iesdsg.dll file located in the C:\Program Files\Spyware Doctor\Tools . Restart SD and run the Smart Update.
Part of Spyware Doctor, I had this problem and running a Spyware Doctor scan then repair made it dissappear.
Causes javascript errors on some web pages
If you really want to get rid of it, uninstall Spyware Doctor.
Part of Spyware Doctor. But SPW seems to hog processor resources at times, so I switch it off via the system tray if the computer slows down
I can't get rid of !!!!!!!!!
  al gough  
Windows Explorer blows up on this DLL when SD is loaded
  Old Guy  
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of iesdsg.dll: based on 20 votes with 9 reviews. 7 users think iesdsg.dll is essential for Windows or an installed application. 5 users think it's probably harmless. 4 users think it's neither essential nor dangerous. 2 users suspect danger. 2 users think iesdsg.dll is dangerous and recommend removing it. 4 users don't grade iesdsg.dll ("not sure about it").

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Best practices for resolving iesdsg issues

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

iesdsg.dll [all]