ZM4

ZoneAlarm Mailsafe renamed PRF file
File type: Various data file
A zm4 file extension is related to the ZoneAlarm Mailsafe, a software for detects dangerous e-mail attachments, A zlc files are renamed PRF Windows system files.
Found 2 different file type records with the same zm4 filename suffix.
What is zm4 file?
File type category:
Various data file
Date updated: October 12, 2017
The ZM4 file extension is associated with ZoneAlarm, a personal firewall software, originally created by Zone Labs and currently developed by CheckPoint Software Technologies LTD.
One of ZoneAlarm features is MailSafe, which detects e-mail attachments and warns the user about their presence. When a potentially dangerous attachment is detected, the program quarantines the file with simple renaming of its original file extension, so it breaks the common program association function in Windows and prevents such files from being executed (or launched via associated program).
A file with ZM4 file extension originally had PRF file extension (most likely Windows system file) Simple renaming will restore the Windows associations with such file, however it is not advised, unless you are absolutely sure it safe to do.
How to open zm4 file?
You can rename the ZM4 file extension back to PRF and work with the file normally. This can however be potentially dangerous, because the file was quarantined for a reason. So always re-check it with your anti-virus or anti-spyware programs before you rename the files.
Suggested software to open zm4 file:
Associated software actions with the zm4 file
Software applications that handle other tasks involving zm4 files:
ZoneAlarm Pro (Microsoft Windows)
ZSNES Movie #4 file
File type category:
Emulator file
Date updated: September 25, 2012
The ZN4 file extension is used by ZSNES Ninentdo emulator for one of its files.
Suggested software to open zm4 file:
Associated software actions with the zm4 file
Software applications that handle other tasks involving zm4 files:
ZSNES (Microsoft Windows)