What is SZServer.exe?

The genuine SZServer.exe file is a software component of STOPzilla by iS3.
The file belongs to the StopZilla suite of anti-virus and anti-malware software. iS3 develops products that ensure internet security, optimized computers, and provide personalized technical support. Its suite of products offer customers an end-to-end security solution.

SzServer stands for STOPzilla Server

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the SZServer.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for SZServer.exe related errors

SZServer.exe file information

Windows Task Manager with SZServer
SZServer.exe process in Windows Task Manager

The process known as STOPzilla Service or STOPzilla belongs to software STOPzilla or SZServer Application by iS3 (

Description: SZServer.exe is not essential for Windows and will often cause problems. The SZServer.exe file is located in a subfolder of "C:\Program Files\Common Files". Known file sizes on Windows 10/8/7/XP are 57,344 bytes (45% of all occurrences), 62,928 bytes and 5 more variants. 
The program is not visible. SZServer.exe is not a Windows system file. The software can be removed using the Control Panel's Add\Remove programs applet. Therefore the technical security rating is 27% dangerous, however you should also read the user reviews.

Uninstalling this variant: There is a possibility to safely remove the program using the uninstall program of STOPzilla or STOPzilla! (Control Panel ⇒ Uninstall a Program).

Recommended: Identify SZServer.exe related errors

If SZServer.exe is located in a subfolder of "C:\Program Files", the security rating is 8% dangerous. The file size is 57,136 bytes (85% of all occurrences) or 67,448 bytes. The program is not visible. SZServer.exe is a Verisign signed file. The file is digitally signed. SZServer.exe is not a Windows system file. The process can be uninstalled in the Control Panel.

Uninstalling this variant: There is a possibility to safely remove the program using the uninstall program of STOPzilla (Control Panel ⇒ Uninstall a Program).

Important: Some malware camouflages itself as SZServer.exe. Therefore, you should check the SZServer.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

spy blocker
  Mark Cisneros  
Part of StopZilla Software
  V. M. S.   (further information)
belongs to STOPzilla spyware and pop-up blocker
  Bill Maxwell   (further information)
it's STOPzilla (anti-spyware); I use it.
  Barb   (further information)
its a antispyware software n it is very good
Takes up valuable resources even after uninstalling StopZilla. Seems to be dangerous as it dramatically slows down CPU processes that may be needed for real-time security.
  Rasheed Afaar  
keylogger identified

Rating chart

Summary: Average user rating of SZServer.exe: based on 11 votes with 7 user comments. 2 users think SZServer.exe is essential for Windows or an installed application. 2 users think it's probably harmless. 4 users think it's neither essential nor dangerous. One user suspects danger. 2 users think SZServer.exe is dangerous and recommend removing it. 3 users don't grade SZServer.exe ("not sure about it").

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Best practices for resolving SZServer issues

A clean and tidy computer is the key requirement for avoiding problems with SZServer. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the SZServer.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

SZServer.exe [all]