What is tomcat5.exe?

The genuine tomcat5.exe file is a software component of Tomcat by Apache Software Foundation.
This background process is an open source web server container. It allows HTTP servicing through a Java Virtual Machine. If this process is terminated, any web pages serviced via the Tomcat process will be unavailable. Originally known as Jakarta Tomcat, Tomcat is released through the Apache Software Foundation.

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 tomcat5.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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Tomcat5.exe file information

Windows Task Manager with tomcat5
Tomcat5.exe process in Windows Task Manager

The process known as Service Runner belongs to software Apache Tomcat or Service Runner or SonicWALL ViewPoint or Mobile Data Now by Apache Software Foundation (

Description: Tomcat5.exe is not essential for the Windows OS and causes relatively few problems. Tomcat5.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 102,400 bytes (47% of all occurrences), 57,344 bytes, 53,248 bytes or 94,208 bytes. 
The program is not visible. Tomcat5.exe is not a Windows core file. The program listens for or sends data on open ports to a LAN or the Internet. Tomcat5.exe is able to manipulate other programs. Therefore the technical security rating is 54% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software vendor offers the option to uninstall the program using the Control Panel ⇒ Uninstall a ProgramApache Tomcat or SonicWALL ViewPoint.

Recommended: Identify tomcat5.exe related errors

Important: Some malware camouflages itself as tomcat5.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the tomcat5.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

a servlet serveur
web server
the Jsp/Servet container
tomcat5.exe also install with CA etrust antivirus program for microsoft exchange server 2003.
  Bo Hunter  
It comes as part of the latest VMWare infrastructure
  Martin Parry  
ZoneAlarm Firewall made alert that this program Request internet server privileges. why hell it want this?! No, Thanks!
  Marcus Mello - Rio de Janeiro  
If I remove it, MCAfees Anti Virus wont startup
application server
best software

Rating chart

Summary: Average user rating of tomcat5.exe: based on 12 votes with 9 user comments. 8 users think tomcat5.exe is essential for Windows or an installed application. 3 users think it's probably harmless. One user suspects danger. One user is not sure about it.

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Best practices for resolving tomcat5 issues

A clean and tidy computer is the key requirement for avoiding problems with tomcat5. 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 tomcat5.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

tomcat5.exe [all]