Opening ZL4 Files

The ZL4 file type is primarily associated with ZoneAlarm Mailsafe.

ZL4	File extension: ZL4
	File type:	Renamed .CHM File

What is a ZL4 file?

ZL4 files mostly belong to ZoneAlarm Mailsafe by Zone Labs. Use our "Online ZL4 Text Viewer" below to analyze your ZL4 file and to see all text it contains.

How to open ZL4 files

You need a suitable software like ZoneAlarm Mailsafe to open a ZL4 file. You need a suitable software like ZoneAlarm Mailsafe from Zone Labs to open a ZL4 file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ZL4 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ZL4 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ZL4 Text Viewer

Choose your .zl4 file to analyze

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

4 Steps to Open an Unknown .ZL4 File

Because .ZL4 files can come from different programs, they aren't universally openable.

Identify the Source: An email from a colleague often suggests a quarantined file from Zone Labs' ZoneAlarm Mailsafe, while a downloaded manual might indicate a renamed .CHM document.
Check the Header: Open the file in a hex viewer or text editor to inspect its first bytes:
- ITSF indicates a Microsoft Compiled HTML Help file.
- PK suggests a standard ZIP archive.
- Readable text implies a basic configuration file.
Use the Original Software: The original program is usually required; try ZoneAlarm, Microsoft HTML Help Executable, or ask the sender if uncertain.
Use this Webpage: Drag and drop the file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for ZL4 File Extension

Program ID:

ZAMailSafe

Related files:

lz4, zlg, zp2, zpr

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\CA\eTrust EZ Armor\eTrust EZ Firewall\_INS5576._MP -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\CA\eTrust EZ Armor\eTrust EZ Firewall\ca.exe

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\CA\eTrust EZ Armor\eTrust EZ Firewall\ca.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\iclient.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\zaplus.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\zapro.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\zlclient.exe

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\zlclient.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\ZONEAL~1.EXE -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\ZONELA~1\ZONEAL~1\ZONEAL~1.EXE -warning %1

ProgramID: ZAMailSafe
EXEFile: Y:\ZoneLabs\ZoneAlarm\zlclient.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\ZoneAlarm\zlclient.exe -warning %1

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\CA\eTrust EZ Armor\eTrust EZ Firewall\zonealarm.exe -warning

Show all 13 listings To Top

a zl4 Renamed .CHM File is a special file format by Zone Labs and should only be edited and saved with the appropriate software.

How to solve problems with ZL4 files

Associate the ZL4 file extension with the correct application.
Update your software that should actually open renamed .chm files. Because only the current version supports the latest ZL4 file format. Search, therefore, e.g. on the Zone Labs manufacturer website after an available ZoneAlarm Mailsafe update.
To make sure that your ZL4 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ZL4 file online - secure, fast, and no downloads needed.