Mail.Ru ICQ DLL ICQInUn.dll

Troubleshoot ICQInUn.dll Issues (Free Download)

Last Updated: 11/25/2023
[Reading Time Required: 3.5 minutes]

ICQInUn.dll, also known as a ICQInUnd file, was created by Mail.Ru for the development of ICQ Ltd. ICQInUnd. DLL files fall under under the Win32 DLL (Dynamic link library) file type category.

ICQInUn.dll was initially released with ICQ build 3916 on 11/27/2002 for the Windows 10 Operating System. This is not only most recent release from Mail.Ru, but it's the only version known in existence.

Below, you find comprehensive file information, instructions for simple DLL file troubleshooting, and list of free ICQInUn.dll downloads for each available file version.

File Analysis Provided by Jason Geater (Author)


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File Overview


General Information ✻
File Name: ICQInUn.dll
File Extension: DLL file extension
Description: ICQInUnd
Object File Type: Dynamic link library
File Operating System: Windows NT 32-bit
MIME Type: application/octet-stream
User Popularity Rating:
 
Developer and Software Information
Software Developer: ICQ Ltd.
Software Program: ICQ Ltd. ICQInUnd
Legal Copyright: Copyright © 2003
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x235f
Code Size: 13312
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What are ICQInUn.dll Error Messages?


Dynamic Link Library ICQInUn.dll Errors

ICQInUn.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like ICQInUn.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like MpSigStub.exe - to follow. These files were created so that multiple programs (eg. ICQ) could share the same ICQInUn.dll file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DLL file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when ICQInUn.dll is attempted to be loaded either when ICQ is starting up, or in some cases already running. Some of the most common ICQInUn.dll errors include:

Your ICQInUn.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with ICQ), or deleted by a malware infection. Furthermore, ICQInUn.dll file corruption could be caused from a power outage when loading ICQ, system crash while loading ICQInUn.dll, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

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How to Fix ICQInUn.dll Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your ICQInUn.dll issue. These troubleshooting steps are listed in the recommended order of execution.


Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the ICQInUn.dll error, please proceed to the Step 2 below.

Step 2: If recently installed ICQ (or related software), uninstall then try reinstalling ICQ software.

You can uninstall ICQ software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for ICQ build 3916 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall ICQ software.

If this Step 2 fails as well, please proceed to the Step 3 below.

ICQ build 3916

Mail.Ru

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many ICQInUn.dll error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the ICQInUn.dll error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your ICQInUn.dll File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate ICQInUn.dll file version. We maintain a comprehensive database of 100% malware-free ICQInUn.dll files for every applicable version of ICQ. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download ICQInUn.dll Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate ICQ folder location:
    Windows 10: C:\Program Files (x86)\ICQ\
  4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.


GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve ICQInUn.dll problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

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Download ICQInUn.dll Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying ICQInUn.dll to your appropriate Windows system directory. Mail.Ru typically does not release ICQ DLL files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing ICQInUn.dll and all other DLL files for ICQ. An incorrectly installed DLL file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10
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Files Related to ICQInUn.dll


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msvcp140_1_app.dll Microsoft® C Runtime Library _1 Microsoft® Visual Studio® 2017 (14.20.27323.0) 24248 C:\Program Files\Common Files\System\Ole DB\res...
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FileCoAuthLib.dll Microsoft OneDriveFile Co-Authoring Library Microsoft OneDrive (19.152.0801.0009) 168056 C:\Users\Tester\AppData\Local\Microsoft\Windows\
icquiex.dll MfcUIExtensions DLL MfcUIExtensions Dynamic Link Library (1, 0, 0, 1) 458333 C:\Program Files (x86)\Common Files\System\Ole DB\

Other Files Related to ICQInUn.dll

File Name Description Software Program (Version) File Size (bytes) File Location
Sessions.xml Extensible Markup Language ICQ build 3916 5277233 C:\Windows\servicing\Sessions\
WmiApRpl.ini Windows Initialization ICQ build 3916 29736 C:\Windows\inf\WmiApRpl\0009\
WmiApRpl.ini Windows Initialization ICQ 10.0.12262 29736 C:\Windows\inf\WmiApRpl\0009\
WmiApRpl.h C/C++/Objective-C Header ICQ build 3916 3444 C:\Windows\System32\wbem\Performance\
api-ms-win-core-sysinf... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 19064 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...


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