Mail.Ru ICQ DLL C4dll.dll

Repair C4dll.dll DLL Issues (How to Download and Fix)

Last Updated: 11/24/2023
[Time to Read Article: 5 minutes]

CodeBase DLL files, such as C4dll.dll, are considered a type of Win32 DLL (Dynamic link library) file. They are associated with the DLL file extension, developed by Mail.Ru for CodeBase.

C4dll.dll was first developed on 11/27/2002 for the Windows 10 Operating System in ICQ build 3916. This file version is latest update offered from Mail.Ru, according to our records.

Continue reading below to discover detailed file information, DLL file troubleshooting, and free downloads of several versions of C4dll.dll.

File Analysis Provided by Jason Geater (Author)


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File Overview


General Information ✻
File Name: C4dll.dll
File Extension: DLL file extension
Description: CodeBase DLL
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: Sequiter Software Inc., ICQ Ltd.
Software Program: CodeBase
Legal Copyright: Copyright © 1999
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: Special build
File Flags Mask: 0x003f
Entry Point: 0x3f836
Code Size: 315392
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What are C4dll.dll Error Messages?


Dynamic Link Library C4dll.dll Errors

C4dll.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like C4dll.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 C4dll.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 C4dll.dll is attempted to be loaded either when ICQ is starting up, or in some cases already running. Some of the most common C4dll.dll errors include:

Your C4dll.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, C4dll.dll file corruption could be caused from a power outage when loading ICQ, system crash while loading C4dll.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 C4dll.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 C4dll.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 C4dll.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 C4dll.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 C4dll.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 C4dll.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 C4dll.dll file version. We maintain a comprehensive database of 100% malware-free C4dll.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 C4dll.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 C4dll.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 C4dll.dll Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying C4dll.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 C4dll.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 C4dll.dll


DLL Files Related to C4dll.dll

File Name Description Software Program (Version) File Size (bytes) File Location
ICQUnkn.dll Dynamic Link Library ICQ build 3916 67175 C:\Program Files\Common Files\L&H\SpeechEngines...
concrt140_app.dll Microsoft® Concurrency Runtime Library Microsoft® Visual Studio® 2017 (14.20.27323.0) 308336 C:\Users\Bill Gates\Links\
ipcfile.dll Microsoft Active Directory Rights Management Services File API Microsoft AD RMS (1.0.3557.0524) 355448 C:\Users\Tester\AppData\Local\
ICQConLb.dll ICQConnectionLib DLL ICQConnectionLib Dynamic Link Library (1, 0, 0, 1) 61030 C:\Windows\Temp\01D3505C-3DF5-4548-9EE7-EC292D6...
libGLESv2.dll Dynamic Link Library libGLESv2 (5.11.1.0) 1990776 C:\Users\Tester\AppData\Local\Microsoft\Windows\

Other Files Related to C4dll.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\
Sessions.back.xml Extensible Markup Language ICQ 10.0.12262 5277233 C:\Windows\servicing\Sessions\
CBS.log Log ICQ 10.0.12262 9398978 C:\Windows\Logs\CBS\
setupact.log Log ICQ 10.0.12262 60976 C:\Windows\Panther\UnattendGC\
setupapi.dev.log Log ICQ build 3916 683894 C:\Windows\inf\


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