What is lexpps.exe?

The genuine lexpps.exe file is a software component of Lexmark Imaging Studio by Lexmark.
A background service that allows for peer-to-peer networking support for Lexmark printers, this application starts automatically with Windows. If this application is stopped, you will be unable to utilize the P2P support function available through Lexmark International. Primarily a laser printer manufacturer, Lexmark was founded in Lexington, Kentucky in 1991.

LexPPS stands for Lexmark Peer-to-Peer Service

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 lexpps.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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Lexpps.exe file information

Windows Task Manager with lexpps
Lexpps.exe process in Windows Task Manager

The process belongs to software MarkVision for Windows (version (32 bit)) by Lexmark International (

Description: Lexpps.exe is not essential for Windows and will often cause problems. Lexpps.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 174,592 bytes (85% of all occurrences), 169,984 bytes and 9 more variants. 
The program has no visible window. The file is not a Windows system file. The program listens for or sends data on open ports to a LAN or the Internet. The file is an unknown file in the Windows folder. Lexpps.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 52% dangerous, however you should also read the user reviews.

Recommended: Identify lexpps.exe related errors

If lexpps.exe is located in a subfolder of "C:\Program Files", the security rating is 44% dangerous. The file size is 174,592 bytes. The lexpps.exe file is a trustworthy file from Microsoft. It can change the behavior of other programs or manipulate other programs. The program is not visible. It is not a Windows core file. The application uses ports to connect to or from a LAN or the Internet. Lexpps.exe is able to record keyboard and mouse inputs.

Uninstalling this variant: There is a possibility to safely remove the program using the uninstall program of Lexmark Printer Sharing (Control Panel ⇒ Uninstall a Program), visit the support page or update the program.

External information from Paul Collins:

Important: Some malware also uses the file name lexpps.exe, for example Trojan.Katusha.A!inf (detected by Symantec), and PTCH_KATUSHA.W (detected by TrendMicro). Therefore, you should check the lexpps.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

My HP printer woin't work if I stop process; Dell Demension 9100, XP sp3
  Robert Benignus  
I just spotted it today and myLexmark printer t hat came with my computer hasnt worked for a long time, I think it is very bad...
Lexmark printer driver. Look in same folder (eg Windows\System32) for related "Lex" files. If not longer needed use Lexunst1.exe to remove all the files. Does NOT show on installed program list under Lexmark or MarkVision. Also look for "extras" components such as c:\LXKZ32\ folder, also not shown on installed program list.
  Jon   (further information)
It strangely appeared a few days ago. I had a Lexmark Printer a long time ago but uninstalled all the software when I got a new printer. The person who created the virus must have named the virus after required system files. If you have a Lexmark keep it otherwise delete it or disable it in msconfig
The file Lexpps.exe is used for peer-to-peer networking support for our inkjet products. If you do not want peer-to-peer support, you can simply delete lexpps.exe and lexp2p32.dll. To remove these files: 1. Search for the files LEXPPS and LEXP2P32. 2. Delete all copies that are retrieved. 3. Once the files have been removed, you will need to restart the PC before the peer-to-peer service can be disabled. You might still receive some warnings from the BCE server. 4. To prevent this, you can use a system driver that does not install the BCE server; this driver is available for Win
  Alex   (further information)
My security software set to block outbound access
  CShell (no printer sharing here)  
Causes ten year old Windows 98SE computer to randonly lockup. I dumped my Lexmark printer for a duplex Cannon inkjet. I started getting random lockups and eventually had to reboot system. Until I realised, I had to frequently save files I was editing. By trial and error I found it was the Lexpps file causing the problem. I simply use Cntl/Alt/Delete command to show open programs and end Lexpps.
  Andy Hamilton  
LexPPS.exe: I've worked on many computers and noticed that this program sometimes interferes. It comes with some printers and probably has to do with networking (and accessing the Internet) only. I've heard that this program is sometimes hijacked. I tend to always delete from the registry (RegEdit) and remove this file and any references. I never see any negative effects (sometimes positive), but I've yet to know someone networking these printers (possible adverse effect if deleted). If you're not sharing this on a network, at least block it from the Internet (FUTURE: "The GRID").
  Ralph A. L√≥pez (Marrero)  
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of lexpps.exe: based on 106 votes with 9 reviews. 26 users think lexpps.exe is essential for Windows or an installed application. 12 users think it's probably harmless. 36 users think it's neither essential nor dangerous. 12 users suspect danger. 20 users think lexpps.exe is dangerous and recommend removing it. 16 users don't grade lexpps.exe ("not sure about it").

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Best practices for resolving lexpps issues

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

lexpps.exe [all]