Opening a ZLC File

The ZLC file type is primarily associated with ZoneAlarm Mailsafe.

ZLCFile Extension ZLC
File extension: ZLC
File type:  Renamed .INF File

What is a ZLC file?

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

How to open a ZLC file

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

Online ZLC Text Viewer

Choose your .zlc file to analyze

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Trouble Opening a .ZLC File? These Steps Will Help

ZLC files can come from different programs and aren't universally openable.

  1. Identify the Source: These are often email attachments quarantined by Zone Labs' ZoneAlarm Mailsafe, or system files renamed by IT administrators to prevent accidental execution.
  2. Check the Header: Inspect the first bytes in a text editor or hex viewer:
    • [Version] indicates a standard Windows .INF text file.
    • MZ suggests a renamed Windows executable.
    • PK implies a compressed ZIP archive.
  3. Use the Original Software: The original program is usually required; try opening it with ZoneAlarm, a standard text editor, or ask the sender if uncertain.
  4. 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 ZLC 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 zlc Renamed .INF 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 ZLC files

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