What is rayserver.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 rayserver.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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Rayserver.exe file information

The process known as rayserver.exe belongs to software mental ray or License Use Management Runtime by unknown.

Description: Rayserver.exe is not essential for the Windows OS and causes relatively few problems. The file rayserver.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 69,632 bytes (90% of all occurrences) or 98,304 bytes. 
Rayserver.exe is a file with no information about its developer. The program has no visible window. It is not a Windows core file. The process uses ports to connect to or from a LAN or the Internet. Therefore the technical security rating is 66% dangerous; however you should also read the user reviews.

Uninstalling this variant: You have the option to do the following:
  • look for help on the website
  • check the vendor’s website for a newer version
  • uninstall License Use Management Runtime or mental ray software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7)

Recommended: Identify rayserver.exe related errors

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

Part of Autodesk 3ds Max Design 2009 32-bit
  Johan Plane  
Process used by CATIA v5 to execute Distributed Rendering on multiple computers. It must be installed after the main CATIA installation, with administrator privileges.

Summary: Average user rating of rayserver.exe: based on 2 votes with 2 user comments. 2 users think rayserver.exe is essential for Windows or an installed application.

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Best practices for resolving rayserver issues

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

rayserver.exe [all]