What is sys32.exe?

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 sys32.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.

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Sys32.exe file information

Windows Task Manager with sys32
Sys32.exe process in Windows Task Manager

The process known as sys32.exe appears to belong to software prjProxyServer by Xeon Productions.

Description: Sys32.exe is not essential for Windows and will often cause problems. The file sys32.exe is located in the C:\Windows folder. Known file sizes on Windows 10/8/7/XP are 26,112 bytes (50% of all occurrences) or 53,760 bytes. 
The program has no file description. The program has no visible window. The file is an unknown file in the Windows folder. It is not a Windows core file. The application starts upon Windows startup (see Registry key: Run, MACHINE\Run, MACHINE\RunServices, Userinit, DEFAULT\Run). The process uses ports to connect to or from a LAN or the Internet. Therefore the technical security rating is 96% dangerous, however you should also read the user reviews.

Recommended: Identify sys32.exe related errors

External information from Paul Collins:
There are different files with the same name:

Important: Some malware also uses the file name sys32.exe, for example WORM_IRCBOT.AQ or TROJ_SPNR.17L311 (detected by TrendMicro), and Win32:Malware-gen (detected by Avast). Therefore, you should check the sys32.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

Downloader + starter
müll trojaner anziehend oder wird gleich mitinstalliert
I got a parental control software that uses it, but if you havent installed a program like that then i suggest u to remove it
  Safer Internet  
Sys32 is a very important file for your computer, it contains all major files for your computer to work properly. IF you delete it, you will destroy your computer.
It is essential fo WINOS, and for some FreeBSD software.
  Bill Gates  

Rating chart

Summary: Average user rating of sys32.exe: based on 8 votes with 6 user comments. 3 users think sys32.exe is essential for Windows or an installed application. One user suspects danger. 4 users think sys32.exe is dangerous and recommend removing it.

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Best practices for resolving sys32 issues

A clean and tidy computer is the key requirement for avoiding problems with sys32. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the sys32.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

sys32.exe [all]