Interop.IWshRuntimeLibrary.dll seems to be malicious? Remove It Instantly!

Interop.IWshRuntimeLibrary.dll is one of the dll files present inside Windows based computers in a very large number, DLL basically stands for dynamic link library files which share a few functions or features to various software or exe files which are based on dlls. So, speaking specifically about Interop.IWshRuntimeLibrary.dll, this file is also associated with a well known software Act1 2009. This is an application created by Sage Software group, as a contact management solution offering users to keep a number of details or information together. This software is technically available for Windows based computers and is compatible for all widely used windows OS versions including XP, Vista, 7, 8, 8.1, and 10 as well. Although this file size may vary from versions to versions, but generally it’s be around 49KB. According to some cyber experts, Interop.IWshRuntimeLibrary.dll file or its features are also utilized by more other software kinds like SDL MultiTerm, Advance system protector, and so on. At all, it simply means, the presence of Interop.IWshRuntimeLibrary.dll on your computer is not anything malicious unless it’s seen doing some uncommon activities.

When to consider Interop.IWshRuntimeLibrary.dll is malicious and how it comes through?

So, as per the experts and even the reality of Interop.IWshRuntimeLibrary.dll file, this is nothing to be malicious if available inside computer in normal way. However, in case if you accidentally come to see Interop.IWshRuntimeLibrary.dll is present inside your system is multiple numbers and even stored in directory other than the Windows root installation, then it can be a malicious one. Yes, as per the reports from security researchers, some malware developers have created a similar Interop.IWshRuntimeLibrary.dll file that can be downloaded from vicious internet means in bundled or packed formats. Such free downloadable objects are often disguised to appear like a helpful software, just to lure users and get installed on target machine. Once installed, the hidden Interop.IWshRuntimeLibrary.dll with them gets deployed inside various folders in Windows, and even their file size varies at high extent in compare to real ones.

Thus, in such circumstances if you also end up finding Interop.IWshRuntimeLibrary.dll is malicious and causing your system to run sluggish or messy, corrupted the original dll file, throwing regular error messages on screen, etc, it must be checked instantly to avoid serious issues further. To do this, a victim would hardly find themselves able to identify Interop.IWshRuntimeLibrary.dll as a malicious stuff unless they have enough technical skills. If they are confirm the presence Interop.IWshRuntimeLibrary.dll is a malware, they can simply remove it through suggested manual instructions. Otherwise, the novice victims are highly recommended to opt an automatic scanner to detect and remove Interop.IWshRuntimeLibrary.dll automatically without any manual hurdles.


Steps To Remove Interop.IWshRuntimeLibrary.dll From Compromised Computer

The infections like Interop.IWshRuntimeLibrary.dll or similar ones or those belong to other malware category are all designed to generate with only ill intention to make money for its developers who make use of any technique to force you down. However, most of the security experts associated with different security associations say this is not much harmful browser and can be removed from an infected computer by getting through some steps. If you follow the steps in the same order and with full attention as described in the procedures below, we hope you can also free up your PC easily. It’s recommended to take a hard copy of the guidelines on paper or get another computer to assist you following the steps without any hassles.

Step 1:Track and remove Interop.IWshRuntimeLibrary.dll from computer’s processes from task manager.

Step 2:Locate and delete the definition of this program from startup files, registry files, and host files.

Step 3:Removal of Interop.IWshRuntimeLibrary.dll from all reputed browsers.

Step 4:Delete Interop.IWshRuntimeLibrary.dll with an automatic solution(The Safest and most recommended method)

Step 1: Track and remove Interop.IWshRuntimeLibrary.dll from computer’s processes from task manager.

  • Launch the Task Manager by pressing a key combination CTRL+SHIFT+ESC simultaneously.

  • Review the suspicious processes and note down its file location on computer.end-malicious-process

  • Terminate the processes now.

  • Open the “Run” command box and enter the noted down location to open in file explorer.

  • Delete the file permanently.

Step 2: Locate and delete the definition of this program from startup files, registry files, and host files

  • Launch the file explorer or any folder from my computer.

  • Click on “View” option in the above Menu (Older Windows version’s user may go to control panel to open “Folder options”)

  • Choose “Folder and Search Options”

  • Click over “View” tab.

  • Scroll down to find “Show hidden files and folders” option, and check it in the check box.

  • Find “Hide protected operating system files” and uncheck it. (This will allow you to see super-hidden files in any folder to identify the suspicious ones.)

  • Click “Apply” then “Ok”

Cleaning Interop.IWshRuntimeLibrary.dll definitions from Windows registry

  • To open Windows registry editor, click Win+R combination.

  • Type “regedit” ro simply copy and paste in the command line

  • Press Ok.

  • Navigate to below mentioned registry files depending on your OS versions (32 bit or 64 bit) and delete the files.

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run] or

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] or


  • Now Launch the Windows explorer and navigate to %appdata% to find and delete suspicios executable files from there, and close the window.

Fixing Hosts file to block the unwanted redirections on all active browsers

  • Open windows explorer and navigate to Windows directory.

  • Go to System32/drivers/etc/host

  • open the host file and notice it. If the system is hijacked by the infection you would see several IP definitions at the bottom.

  • Select those IP addresses and delete them. (Don’t delete the local host entry)

  • Save and close the file, and exit the explorer window.

Step 3: Removal of Interop.IWshRuntimeLibrary.dll from all reputed browsers (Steps included for Chrome, Firefox & Internet Explorer)

Google Chrome

  • Launch Chrome browser.

  • Click over the main menu icon and select Tools or More Tools, then Extensions.

  • Scroll down to notice the list of installed extensions to find suspicious one and click the bin option beside it.

  • Click remove button to confirm the deletion.

  • Finally, Reset the Chrome settings to default leaving nothing behind.

Mozilla Firefox

  • Launch the Firefox and press CTRL+SHIFT+A to open extension Window.

  • Look for the Interop.IWshRuntimeLibrary.dll extension and Disable it.

  • Now go to Help section.

  • Click over Troubleshooting information then hit the Reset button.

  • Confirm the act to reset the browser.

Internet Explorer

  • Simply, open the browser and click thee Gear Icon on the upper right corner.

  • Navigate to Internet options and click it.

  • Now, navigate to Toolbars and Extensions, to see the list of installed addons to find unwanted one.

  • Disable or delete the selected extensions permanently.

  • In order to reset the Ie, click over Advanced tab, and click Reset.

  • Press OK button to confirm.

Cleaning the browser’s shortcuts on the computer is also recommended in most of the cases and should be accomplished for all installed browsers, for which the steps are:

  • Select the browser short-cut, and right click on it.

  • Navigate the properties and click it.

  • In the opened window, find the target option, and remove the argument for Interop.IWshRuntimeLibrary.dll .

  • Apply the changes.

Step 4: Remove Interop.IWshRuntimeLibrary.dll with an automatic solution

Although the removal method through manual instructions are effective and proven to provide the best results, still some of the victimized users may fail to get the results as per their desire. This can happen due to lack of technical consent to access most of the administrative utilities as used in above guidelines. If you also got stuck through the instructions or seeking the safest method which needs not any high end manual steps, then opting an automatic solution could be the best solution. You just need to do a few instructions taken in practice to install and scan the system deeply that will fix all issues and remove Interop.IWshRuntimeLibrary.dll completely. The required steps to do so is all here mentioned.


Easily remove all online trending threats from your PC safely at just single click.

Step 1:Download and install Interop.IWshRuntimeLibrary.dll removal tool and install it on your computer (Note:this is a free scanner that will detect the present malwares on your system only. In order to fix the threats completely, you would have to buy its full version to remove the threats.)

Step 1

Step 2: After the installation is finished, run the scanner and you will see the two options as depicted in the image below. Click on “Scan Computer Now” button.

Step 2

Step 3: In this step, you would see the scanning process bar with detection of found threats and its short description along-with its categorized thumbnail.

Step 3

Step 4: Lastly, the scanner finishes scanning the computer to show full list of detected threats on computer. Just click on “Fix Threats” button to complete the removal that hardly takes a few moments depending upon the nature and severity level of the malware items.

Step 4