Download Security.dll and Fix DLL Errors

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

security.dll, also known as a RealNetworks File Renderer Utility Toolkit file, was created by Xilisoft Corporation for the development of RealNetworks RealPlayer. DLL files fall under under the Win32 DLL (Executable application) file type category.

security.dll was first released for Windows Vista Operating System on 11/08/2006 with Windows Vista. The most recent version [file version 1.0.3.2483] was introduced on 09/25/2018 for Xilisoft Video Converter Ultimate 7.8.23.20180925. security.dll is found in Xilisoft Video Converter Ultimate 7.8.23.20180925, Xilisoft Video Converter Platinum 7.8.18.20160913, and Windows 10.

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

File Analysis Provided by Jason Geater (Author)


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File Overview


General Information
File Name: security.dll
File Extension: DLL file extension
Description: RealNetworks File Renderer Utility Toolkit
Object File Type: Executable application
File Operating System: Windows NT 32-bit
MIME Type: application/octet-stream
User Popularity Rating:
 
Developer and Software Information
Software Developer: RealNetworks, Inc.
Software Program: RealNetworks RealPlayer
Legal Copyright: Copyright © RealNetworks, Inc. 1995-2004
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x6430
Code Size: 24576


What are security.dll Error Messages?


Dynamic Link Library security.dll Errors

security.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like security.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. Xilisoft Video Converter Ultimate) could share the same security.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 security.dll is attempted to be loaded either when Xilisoft Video Converter Ultimate is starting up, or in some cases already running. Some of the most common security.dll errors include:

Your security.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Xilisoft Video Converter Ultimate), or deleted by a malware infection. Furthermore, security.dll file corruption could be caused from a power outage when loading Xilisoft Video Converter Ultimate, system crash while loading security.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.



How to Fix security.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 security.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 security.dll error, please proceed to the Step 2 below.

Step 2: If recently installed Xilisoft Video Converter Ultimate (or related software), uninstall then try reinstalling Xilisoft Video Converter Ultimate software.

You can uninstall Xilisoft Video Converter Ultimate 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 Xilisoft Video Converter Ultimate 7.8.23.20180925 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Xilisoft Video Converter Ultimate software.

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

Xilisoft Video Converter Ultimate 7.8.23.20180925

Xilisoft Corporation

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 security.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 security.dll error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.



If Those Steps Fail: Download and Replace Your security.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 security.dll file version. We maintain a comprehensive database of 100% malware-free security.dll files for every applicable version of Xilisoft Video Converter Ultimate. 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 security.dll Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Xilisoft Video Converter Ultimate folder location:
    Windows XP: C:\WINDOWS\system32\dllcache\
    Windows XP: C:\Windows\System32\
    Windows Vista: C:\Windows\System32\
    Windows Vista: C:\Windows\SysWOW64\
    Windows 7: C:\Windows\SysWOW64\
    Show 8 more directories +
    Windows 7: C:\Windows\System32\
    Windows 8: C:\Windows\System32\
    Windows 8.1: C:\Windows\System32\
    Windows 10: C:\Program Files (x86)\Xilisoft\Video Converter Ultimate\Real\Common\
    Windows 10: C:\Program Files (x86)\Xilisoft\Video Converter Ultimate\Real\Plugins\
    Windows 10: C:\Program Files (x86)\Xilisoft\Video Converter Platinum\Real\Common\
    Windows 10: C:\Program Files (x86)\Xilisoft\Video Converter Platinum\Real\Plugins\
    Windows 10: C:\Windows\System32\
  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 security.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.



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


CAUTION : We strongly advise against downloading and copying security.dll to your appropriate Windows system directory. Xilisoft Corporation typically does not release Xilisoft Video Converter Ultimate 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 security.dll and all other DLL files for Xilisoft Video Converter Ultimate. 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
Windows XP
Windows Vista
Windows 8.1
Windows 8
Windows 7


Files Related to security.dll


DLL Files Related to security.dll

File Name Description Software Program (Version) File Size (bytes) File Location
api-ms-win-core-debug-... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 11112 C:\Windows\System32\Sysprep\Panther\
Telemetry.dll Telemetry Library Microsoft OneDrive (19.192.0926.0012) 179560 C:\Windows\System32\en-US\
mediasink.dll Media sink plugin Helix Producer SDK (10.0.0.545) 53321 C:\Windows\System32\winevt\Logs\
audiometer.dll Audio level/VU meter Helix Producer SDK (10.0.0.545) 53327 C:\Windows\System32\winevt\Logs\
immplayer0.dll immplayer Xilisoft Video Converter Ultimate 7.8.23.20180925 504912 C:\Program Files\WindowsApps\Deleted\Microsoft....

Other Files Related to security.dll

File Name Description Software Program (Version) File Size (bytes) File Location
symbol.ttf TrueType Font Xilisoft Video Converter Platinum 7.8.18.20160913 70128 C:\Program Files\WindowsApps\Microsoft.Office.O...
setupact.log Log Xilisoft Video Converter Ultimate 7.8.23.20180925 62521 C:\Windows\Panther\UnattendGC\
setupapi.dev.log Log Xilisoft Video Converter Platinum 7.8.18.20160913 684126 C:\Windows\inf\
setupapi.dev.log Log Xilisoft Video Converter Ultimate 7.8.23.20180925 684126 C:\Windows\inf\
WmiApRpl.h C/C++/Objective-C Header Xilisoft Video Converter Platinum 7.8.18.20160913 3444 C:\Windows\System32\wbem\Performance\


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