Found 2 records for the .Z4 file extension name
There are 1 other file type using the Z4 file extension:
.z4 - Infocom game module for Z-machine version 4
file extension Z4 - Zonealarm Mailsafe
File extension Z4 description:
File extension Z4 entry has not yet been fully verified by File-Extensions.org team. It was added in the past to our library and appeared to be accurate.
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Associated applications to file extension Z4:
Company / developer:
Zone Labs
ZoneAlarm's MailSafe provides virus protection for Microsoft Visual Basic scripts sent as e-mail attachments.
How MailSafe works
MailSafe protects your machine against viruses that can potentially arrive as e-mail attachments in the form of .VBS (Visual Basic script) files.
MailSafe is active by default; the option to enable or disable it can be found in the Security Panel. MailSafe works with mail clients that use POP3 and IMAP, the most common Internet e-mail protocols. It identifies .VBS scripts that arrive attached to your e-mails and prevents them from executing.
When an attachment is detected, ZoneAlarm quarantines it by changing the extension to .ZL and ends with either a letter or number. For example, a file called SERVER.VBS will be renamed SERVER.ZL1.
When you double-click on a quarantined file, ZoneAlarm asks whether or not you would like to open the attachment. At this point, you can choose to open the attachment, to delete the e-mail, or to check further on the validity of the e-mail and the attachment.
MailSafe does not automatically delete files attached to your e-mails and it is not a virus scanner. Rather than scanning and deleting viruses, it quarantines the attachment file and gives you the opportunity to keep the identified .VBS program from running. Visual Basic Script files can only cause damage when they are allowed to run on your machine.
MailSafe can cause a conflict with other mail-checking software. For this reason, if your e-mail system freezes or hangs or you run into a similar technical problem while you have MailSafe active, either disable MailSafe or disable other mail-checking or virus scanning software you have installed.