ZoneAlarm

ApplicationCheck Point

Also called zone alarm, checkpoint zonealarm, zatray

Check PointSecurity

An old consumer firewall brand Check Point still sells. The tray is zatray.exe. It is not Windows Firewall.

What you need to know

zatray.exe is ZoneAlarm. Windows Firewall is the in-box page.

ZoneAlarm is Check Point's consumer firewall. Two firewalls with Windows Firewall is the usual pain. An AV SKU plus live Defender is the two-engine case. GlassWire is a newer graph with an optional firewall.

What is it?: Old consumer firewall Check Point still sells
Same as Windows Firewall?: No. Different product
Two firewalls?: Pick one owner

Feex says

If zatray.exe is in the tray, I would treat it as ZoneAlarm, not Windows Firewall. I would pick one firewall. If the SKU also installed AV, I would check that Defender went passive.

What is ZoneAlarm?

ZoneAlarm is a consumer firewall from Check Point. zatray.exe is the tray. Windows Firewall is the Microsoft feature.

If you have never used it

If you wanted the old ZoneAlarm firewall, this is that Check Point consumer brand, not Windows Firewall. Download it from zonealarm.com. zatray.exe is the tray. Windows Firewall is the in-box page in Windows Security. Two firewalls is the fight. Some ZoneAlarm SKUs add antivirus. That AV plus live Defender is the other fight.

What is it used for?

Third-party firewall popups

Program allow prompts are ZoneAlarm. Windows Firewall uses a different dialog in Windows Security.

Free Firewall versus Extreme or Antivirus SKUs

Free is firewall-first. Paid SKUs can add AV. That AV should take Defender's slot if you enable it.

Check Point leftover naming

vsmon.exe and TrueVector are old ZA names. They are not MsMpEng.exe.

Who is it for?

People who still want ZoneAlarm popups
Users comparing this to Windows Firewall
Anyone with zatray.exe plus a second AV

Current status

Still sold by Check Point. This article is the Windows consumer app.

How old is it?

Zone Labs shipped ZoneAlarm around 2000. Check Point bought it. Current storefronts still sell ZoneAlarm Free Firewall and paid bundles. A 2003 ZA popup screenshot is nostalgia, not proof the brand died.

Versions

Major channels first. Exact build numbers are not all verified here.

Free Firewall

Extreme Security

Antivirus SKU

System requirements

Values follow the publisher's public guidance. Workload still changes the real need.

Minimum

Minimum system requirements
Operating system	Windows 10 or Windows 11, per current ZoneAlarm support
RAM	Light firewall. Paid AV SKUs add resident cost

Resource profile

CPU demand: Low for firewall. Higher if AV is on
Network demand: Rule updates

Installed processes

These executables belong to this product when it is installed.

Installed processes
zatray.exe	ZoneAlarm tray. Not the Windows Firewall service
vsmon.exe	TrueVector / ZA monitor on many installs

Startup components

zatray.exe starts with Windows while ZoneAlarm is installed.

File locations

Common ZoneAlarm locations
Typical install	C:\Program Files\CheckPoint\ZoneAlarm\

Common problems

Two firewalls

ZoneAlarm plus Windows Firewall can block the same app. Pick an owner in Windows Security and in ZA.

ZA antivirus plus live Defender

If you installed a ZA AV SKU, one engine should own realtime.

Getting unstuck

Install from zonealarm.com

A "ZoneAlarm 2005" archive is stale. Windows Security is Settings, not this download.

If you only wanted Windows Firewall, uninstall ZA

The in-box firewall is enough for many PCs.

Check Virus and threat protection if a ZA AV SKU is present

The owner should not list two live engines.

Alternatives

Windows Firewall in Windows Security. GlassWire if you wanted a graph. Comodo if you wanted HIPS popups.

Official help and downloads

Start with the vendor. Random exe sites are not a support channel.

Official contacts
Download	www.zonealarm.com/ Official installer or vendor page
Help	www.zonealarm.com/support Vendor support
Official site	www.zonealarm.com/ Start here, not a random exe host

Related hardware

The firewall is light. Popups are the UX cost.

Technical details

Vendor version numbers change. This article does not pin a build.

Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. How we research.

ZoneAlarm official site · Vendor product page
ZoneAlarm help · Vendor support
Foxhole process map · First-party samples on Windows PCs. Not a lab benchmark.

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