7z.dll DLL Errors: Download and Troubleshoot

Last Updated: 06/30/2022
[Average Read Time: 4.5 minutes]

7z.dll is considered a type of 7z Plugin file. It is most-commonly used in 7-Zip developed by Open Source. It uses the DLL file extension and is considered a Win32 DLL (Dynamic link library) file.

The first release in the Windows 10 Operating System for 7z.dll was on 08/02/2019 inside Malwarebytes 3.8.3.2965. The latest file version for PeaZip 6.9.2 is v19.00 released on 09/01/2019. 7z.dll is found in PeaZip 6.9.2, 7-Zip 19, and Microsoft Office PowerPoint 2010 14.

This article discusses complete file details, DLL file troubleshooting instructions for problems with 7z.dll, and a comprehensive set of free downloads for every file version that has been catalogued by our team.

File Analysis Provided by Jason Geater (Author)


Recommended Download: Fix 7z.dll / PeaZip-related registry issues with WinThruster.

Compatible with Windows 10, 8, 7, Vista, XP and 2000

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File Overview


General Information
File Name: 7z.dll
File Extension: DLL file extension
Description: 7z Plugin
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: Igor Pavlov
Software Program: 7-Zip
Legal Copyright: Copyright (c) 1999-2018 Igor Pavlov
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0xcf393
Code Size: 884736


What are 7z.dll Error Messages?


Dynamic Link Library 7z.dll Errors

7z.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like 7z.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. PeaZip) could share the same 7z.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 7z.dll is attempted to be loaded either when PeaZip is starting up, or in some cases already running. Some of the most common 7z.dll errors include:

Your 7z.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with PeaZip), or deleted by a malware infection. Furthermore, 7z.dll file corruption could be caused from a power outage when loading PeaZip, system crash while loading 7z.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 7z.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 7z.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 7z.dll error, please proceed to the Step 2 below.

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

You can uninstall PeaZip 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 PeaZip 6.9.2 and click "Uninstall"
  5. Follow the prompts for uninstallation.

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

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

PeaZip 6.9.2

Open Source

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 7z.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 7z.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 7z.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 7z.dll file version. We maintain a comprehensive database of 100% malware-free 7z.dll files for every applicable version of PeaZip. 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 7z.dll Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate PeaZip folder location:
    Windows 10: C:\Program Files (x86)\Media Freeware\Free Rar Password Unlocker\
    Windows 10: C:\Program Files (x86)\IObit\Driver Booster\7.0.2\
    Windows 10: C:\Program Files\Quark\QuarkXPress 2019\PDFToolBox\etc\UnpackTool\
    Windows 10: C:\Program Files\7-Zip\
    Windows 10: C:\Program Files\Trend Micro\AMSP\update\iAU_SDK_Backup\iaucore\
    Show 78 more directories +
    Windows 10: C:\Program Files\Trend Micro\AMSP\update\iau_sdk\iaucore\
    Windows 10: C:\Program Files (x86)\PowerISO\
    Windows 10: C:\Program Files (x86)\Avira\Privacy Pal\
    Windows 10: C:\Program Files (x86)\360\Total Security\safemon\
    Windows 10: C:\Program Files\Black Ice Software LLC\PDF Printer Driver\Email Sending Utility\32bit\
    Windows 10: C:\Users\Tester\AppData\Local\Temp\RarSFX0\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{704F43D3-B221-4379-A878-355DFED0FC2B}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{704F43D3-B221-4379-A878-355DFED0FC2B}\
    Windows 10: C:\Program Files\Cheetah Burner\Cheetah CD Burner\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{0078CD4D-B146-4D77-8CF0-268B36C1A3EC}\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{0F4F617F-E8D5-46A3-A0F9-43855182A3B1}\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{324F76CC-D8DD-4D87-B77D-D4AF5E1AA7B3}\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{7A3F32E0-D8E1-40C1-8E1B-1F5693F2ADE0}\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{8D149BE2-6542-4F6A-AEC4-7D61E6DCAEFB}\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{8FCCB703-3FBF-49e7-A43F-A81E27D9B07E}\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{90BB14DB-2494-40fe-AE58-4930B3CFB4BD}\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{B7E9FF81-662B-4A4A-A7FE-0F1B64B4A9DA}\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{D7EACFE3-BC6A-48bb-B28C-4DBF318225E3}\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{EE9EC028-49D2-4349-B0A3-9B2E752A4958}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{0078CD4D-B146-4D77-8CF0-268B36C1A3EC}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{0F4F617F-E8D5-46A3-A0F9-43855182A3B1}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{324F76CC-D8DD-4D87-B77D-D4AF5E1AA7B3}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{7A3F32E0-D8E1-40C1-8E1B-1F5693F2ADE0}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{8D149BE2-6542-4F6A-AEC4-7D61E6DCAEFB}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{90BB14DB-2494-40fe-AE58-4930B3CFB4BD}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{B7E9FF81-662B-4A4A-A7FE-0F1B64B4A9DA}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{EE9EC028-49D2-4349-B0A3-9B2E752A4958}\
    Windows 10: C:\Users\Tester\AppData\Local\Temp\RarSFX0\PP\
    Windows 10: C:\Users\Tester\AppData\Local\Temp\RarSFX0\PhotoDirector9\
    Windows 10: C:\Users\Tester\AppData\Local\Temp\RarSFX0\SRecorder\
    Windows 10: C:\Users\Tester\AppData\Local\Temp\RarSFX0\UCM\
    Windows 10: C:\Users\Tester\AppData\Local\Temp\RarSFX0\WVEditor\
    Windows 10: C:\Program Files (x86)\Powerful Utilities\Free RAR File Opener\
    Windows 10: C:\Program Files (x86)\Powerful Utilities\Free RAR File Opener\x86\
    Windows 10: C:\Program Files (x86)\PeaZip\res\7z\
    Windows 10: C:\Program Files\MiniTool Partition Wizard 11\
    Windows 10: C:\Program Files\MiniToolPowerDataRecovery\
    Windows 10: C:\Program Files (x86)\Nero\Nero Platinum\Nero MediaHome\
    Windows 10: C:\Program Files\Black Ice Software LLC\PDF Printer Driver\Email Sending Utility\64bit\
    Windows 10: C:\Program Files (x86)\AOMEI Partition Assistant\
    Windows 10: C:\Program Files\Trend Micro\AMSP\update\iAU_SDK_Backup\iaucore\
    Windows 10: C:\Program Files\Trend Micro\AMSP\update\iau_sdk\iaucore\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{1FBF6C24-C1fD-4101-A42B-0C564F9E8E79}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{1FBF6C24-C1fD-4101-A42B-0C564F9E8E79}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{C311A2C9-A8F9-408A-8386-B3118338754C}\
    Windows 10: C:\Users\Tester\AppData\Local\Temp\RarSFX0\PStarter\
    Windows 10: C:\Users\Tester\AppData\Local\Temp\RarSFX0\PerfectCam\
    Windows 10: C:\Program Files (x86)\Powerful Utilities\Free RAR File Opener\x64\
    Windows 10: C:\Program Files\PeaZip\res\7z\
    Windows 10: C:\Program Files\Easeware\DriverEasy\7z\
    Windows 10: C:\Program Files\Cheetah Burner\Cheetah DVD Burner\
    Windows 10: C:\Program Files (x86)\UCBrowser\Application\7.0.185.1002\
    Windows 10: C:\Program Files (x86)\AOMEI Partition Assistant\x64\
    Windows 10: C:\Program Files (x86)\ESTsoft\ALZip\Formats\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{8F14AA37-5193-4A14-BD5B-BDF9B361AEF7}\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{ADD5DB49-72CF-11D8-9D75-000129760D75}\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{C59C179C-668D-49A9-B6EA-0121CCFC1243}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{8F14AA37-5193-4A14-BD5B-BDF9B361AEF7}\
    Windows 10: C:\Program Files\Free Opener\Views\7z\
    Windows 10: C:\Program Files (x86)\File Viewer Lite\lib\
    Windows 10: C:\Program Files (x86)\Globalscape\CuteFTP\
    Windows 10: C:\Program Files (x86)\Nero\Nero 2019\Nero MediaHome\
    Windows 10: C:\Program Files (x86)\IObit\IObit Malware Fighter\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{5C6A88EF-7090-4B7A-A7C2-7AC51C27D2B5}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{5C6A88EF-7090-4B7A-A7C2-7AC51C27D2B5}\
    Windows 10: C:\Program Files\Trend Micro\AMSP\update\iAU_SDK_Backup\iaucore\
    Windows 10: C:\Program Files\Trend Micro\AMSP\update\iau_sdk\iaucore\
    Windows 10: C:\Program Files (x86)\InstallShield Installation Information\{729D20C8-FC13-4BE9-B0BB-E86F76600647}\
    Windows 10: C:\Program Files (x86)\NSIS Uninstall Information\{729D20C8-FC13-4BE9-B0BB-E86F76600647}\
    Windows 10: C:\Users\Tester\Downloads\7z1900-x64\
    Windows 10: C:\Program Files\PowerArchiver\
    Windows 10: C:\Program Files\GridinSoft Anti-Malware\
    Windows 10: C:\Program Files (x86)\7-Zip\
    Windows 10: C:\Program Files (x86)\ExtractNow\
    Windows 10: C:\Program Files\Beyond Compare 4\
    Windows 10: C:\Program Files\Malwarebytes\Anti-Malware\
    Windows 10: C:\Program Files (x86)\Nokia\Nokia Suite\
    Windows 10: C:\Program Files\ACD2019FREE\
  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 7z.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 7z.dll Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying 7z.dll to your appropriate Windows system directory. Open Source typically does not release PeaZip 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 7z.dll and all other DLL files for PeaZip. 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


Files Related to 7z.dll


DLL Files Related to 7z.dll

File Name Description Software Program (Version) File Size (bytes) File Location
vcruntime140.dll Microsoft® C Runtime Library Microsoft® Visual Studio® 2017 (14.22.27810.0) 79920 C:\Program Files\WindowsApps\Microsoft.VCLibs.1...
api-ms-win-core-file-l... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 11112 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
Microsoft.Office.Irm.M... Microsoft MSO IRM Protector Microsoft.Office.Irm.MsoProtector (1.0.3557.0524) 46952 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
System.Xml.ni.dll Dynamic Link Library PeaZip 6.9.2 6968320 C:\Windows\assembly\NativeImages_v2.0.50727_64\...
api-ms-win-crt-multiby... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 19304 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...

Other Files Related to 7z.dll

File Name Description Software Program (Version) File Size (bytes) File Location
Sessions.back.xml Extensible Markup Language IrfanView 4.53 5277232 C:\Windows\servicing\Sessions\
CBS.log Log vanBasco's Karaoke Player 2.53 971509 C:\Windows\Logs\CBS\
CBS.log Log HJ-Split 3 888204 C:\Windows\Logs\CBS\
CBS.log Log PeaZip 6.9.2 888331 C:\Windows\Logs\CBS\
CBS.log Log HTTrack 3.48.21 888331 C:\Windows\Logs\CBS\


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