Opening a ZLH File

The ZLH file type is primarily associated with ZoneAlarm Mailsafe.

ZLHFile Extension ZLH
File extension: ZLH
File type:  Renamed .MDB File

What is a ZLH file?

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

How to open a ZLH file

You need a suitable software like ZoneAlarm Mailsafe to open a ZLH file. You need a suitable software like ZoneAlarm Mailsafe from Zone Labs to open a ZLH 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 ZLH file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ZLH file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ZLH Text Viewer

Choose your .zlh file to analyze

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.ZLH File Won't Open? Here is What You Can Do

A .ZLH file can originate from different programs and isn't universally openable.

  1. Identify the Source: If received via email, it may be a quarantined file from ZoneAlarm Mailsafe. If from an older database workflow, it suggests a renamed Microsoft Access file.
  2. Check the Header: Open the file in a hex viewer to inspect the first few bytes.
    • Standard Jet DB indicates a Microsoft Access database (.MDB).
    • PK suggests a renamed ZIP archive.
  3. Use the Original Software: Opening the file usually requires the original program; try Microsoft Access, ZoneAlarm, or ask the sender for the original format.
  4. Use this Webpage: Drag and drop your .ZLH file into our viewer to detect its true format, extract readable metadata, and preview its contents.

Technical Data for ZLH File Extension

Program ID:
ZAMailSafe
Related files:

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


a zlh Renamed .MDB 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 ZLH files

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