ZoneAlarm ZoneAlarm Pro Antivirus+Firewall 2019 DLL av.dll

How to Fix Issues with Av.dll (Free Download)

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

av.dll is considered a type of ZoneAlarm file. It is most-commonly used in ZoneAlarm developed by ZoneAlarm. 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 av.dll was on 11/27/2019 inside ZoneAlarm Antivirus 15.8.008.18174. The latest file update released for ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012 was on 04/30/2019 [file version 15.6.11.17997].

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

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	av.dll
File Extension:	DLL file extension
Description:	ZoneAlarm
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:	Check Point Software Technologies Ltd.
Software Program:	ZoneAlarm
Legal Copyright:	Copyright © 2019, Check Point, LTD

File Details
Character Set:	Windows, Latin1
Language Code:	English (U.S.)
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x8bbc0
Code Size:	867328

View Other av.dll Information

File Info	Description
File Size:	1207 kB
File Modification Date/Time:	2019:12:16 15:50:25+00:00
File Type:	Win32 DLL
MIME Type:	application/octet-stream
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	2019:04:11 00:10:39+00:00
PE Type:	PE32
Linker Version:	14.0
Code Size:	867328
Initialized Data Size:	365056
Uninitialized Data Size:	0
Entry Point:	0x8bbc0
OS Version:	6.0
Image Version:	1.0
Subsystem Version:	6.0
Subsystem:	Windows GUI
File Version Number:	15.6.11.17997
Product Version Number:	15.6.11.17997
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows NT 32-bit
Object File Type:	Dynamic link library
File Subtype:	0
Language Code:	English (U.S.)
Character Set:	Windows, Latin1
Company Name:	Check Point Software Technologies Ltd.
File Description:	ZoneAlarm
File Version:	15.6.11.17997
Internal Name:	av
Legal Copyright:	Copyright © 2019, Check Point, LTD
Product Name:	ZoneAlarm
Product Version:	15.6.11.17997

^✻ Portions of file data provided by Exiftool (Phil Harvey) distributed under the Perl Artistic License.

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What are av.dll Error Messages?

Dynamic Link Library av.dll Errors

av.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like av.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. ZoneAlarm Pro Antivirus+Firewall 2019) could share the same av.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 av.dll is attempted to be loaded either when ZoneAlarm Pro Antivirus+Firewall 2019 is starting up, or in some cases already running. Some of the most common av.dll errors include:

Access Violation at address - av.dll.
av.dll could not be found.
Cannot find C:\Program Files (x86)\CheckPoint\ZoneAlarm\av.dll.
Cannot register av.dll.
Cannot start ZoneAlarm Pro Antivirus+Firewall 2019. A required component is missing: av.dll. Please install ZoneAlarm Pro Antivirus+Firewall 2019 again.
Failed to load av.dll.
The application has failed to start because av.dll was not found.
The file av.dll is missing or corrupt.
This application failed to start because av.dll was not found. Re-installing the application may fix this problem.

Your av.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with ZoneAlarm Pro Antivirus+Firewall 2019), or deleted by a malware infection. Furthermore, av.dll file corruption could be caused from a power outage when loading ZoneAlarm Pro Antivirus+Firewall 2019, system crash while loading av.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 av.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 av.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):

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

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

Step 2: If recently installed ZoneAlarm Pro Antivirus+Firewall 2019 (or related software), uninstall then try reinstalling ZoneAlarm Pro Antivirus+Firewall 2019 software.

You can uninstall ZoneAlarm Pro Antivirus+Firewall 2019 software by following these instructions (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "Uninstall" and press "ENTER".
In the search results, find and click "Add or Remove Programs"
Find the entry for ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012 and click "Uninstall"
Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall ZoneAlarm Pro Antivirus+Firewall 2019 software.

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

ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012

ZoneAlarm

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 av.dll error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

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

If Windows Update failed to resolve the av.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 av.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 av.dll file version. We maintain a comprehensive database of 100% malware-free av.dll files for every applicable version of ZoneAlarm Pro Antivirus+Firewall 2019. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download av.dll Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy this file to the appropriate ZoneAlarm Pro Antivirus+Firewall 2019 folder location:

Windows 10: C:\Program Files (x86)\CheckPoint\ZoneAlarm\
Windows 10: C:\Program Files (x86)\CheckPoint\ZoneAlarm\
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 av.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 av.dll Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying av.dll to your appropriate Windows system directory. ZoneAlarm typically does not release ZoneAlarm Pro Antivirus+Firewall 2019 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 av.dll and all other DLL files for ZoneAlarm Pro Antivirus+Firewall 2019. An incorrectly installed DLL file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012

File Name

Software Version

File Version

Architecture

av.dll

15.6.11.17997

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	ZoneAlarm
Software Version:	15.6.11.17997
File Version:	15.6.11.17997
File Size:	1236336
File Date:	12/16/2019
MD5 Checksum:	60be9a814324c3fa90881e7d6b548cd5
SHA1 Checksum:	24d4e8ab5e8f04a689d485a5dd32d0a5f25eb257
SHA256 Checksum:	cf668aaf7fe0b3b740a3af9c057f6fa2cedebbb8b201d4c7361884a182c25948
CRC32:
File Directory Location:	C:\Program Files (x86)\CheckPoint\ZoneAlarm\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	1.0
Initialized Data Size:	365056
Linker Version:	14.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	6.0
File Modification Date/Time:	12/16/2019

ZoneAlarm Antivirus 15.8.008.18174

File Name

Software Version

File Version

Architecture

av.dll

15.8.7.18219

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	ZoneAlarm
Software Version:	15.8.7.18219
File Version:	15.8.7.18219
File Size:	1316576
File Date:	12/06/2019
MD5 Checksum:	c482dbcf43fdb8d4386bc9a8d9d4b455
SHA1 Checksum:	46fbe825e8fe702be0ef6c2cb7aed9acb0701659
SHA256 Checksum:	24d293dffb63711043b40b54e75333e333d17bf8550065bd6d6b003a5c41e1c7
CRC32:
File Directory Location:	C:\Program Files (x86)\CheckPoint\ZoneAlarm\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	1.0
Initialized Data Size:	386560
Linker Version:	14.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	6.0
File Modification Date/Time:	12/06/2019

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Files Related to av.dll

DLL Files Related to av.dll

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
cf_engines.dll	Content Filtering Engines	Content filtering PDK (1.7.455.0)	504688	C:\Program Files\WindowsApps\Microsoft.ZuneVide...
persistent_queue.dll	Persistent Queue. Part of KSN PDK	United Delivery 5.0 (1.9.435.0)	139632	C:\Program Files\WindowsApps\Microsoft.ZuneVide...
api-ms-win-core-sysinf...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.14393.33)	19136	C:\$WINDOWS.~BT\Sources\Boot\PXE\lv-LV\
klhkum.dll	System Interceptors PDK usermode service interceptor	System Interceptors PDK (16.0.58.0)	152360	C:\Program Files\WindowsApps\Microsoft.ZuneVide...
api-ms-win-core-sysinf...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.10586.212)	19648	C:\$WINDOWS.~BT\Sources\Boot\PXE\lv-LV\

Other Files Related to av.dll

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
CBS.log	Log	ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012	888398	C:\Windows\Logs\CBS\
setupact.log	Log	ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012	62521	C:\Windows\Panther\UnattendGC\
diagwrn.xml	Extensible Markup Language	ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012	44683	C:\Windows\Panther\UnattendGC\
diagerr.xml	Extensible Markup Language	ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012	44109	C:\Windows\Panther\UnattendGC\
EtwRTDiagLog.etl	Microsoft Event Trace Log	ZoneAlarm Pro Antivirus+Firewall 2019 15.6.028.18012	1320	C:\Windows\System32\LogFiles\WMI\RtBackup\

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