What is lmpdpsrv.exe?

The genuine lmpdpsrv.exe file is a software component of Printer Driver Plus by Lexmark.
Lmpdpsrv.exe is an executable file that runs the Printer Driver Plus Server Drivers, a system component that installs with Lexmark Printers. This file is not a critical Windows component and can be removed if known to create problems. Lexmark International, Inc. is an American company that manufactures and sells laser printers and offers enterprise services. It was founded in 1991 and is headquartered in Lexington, Kentucky, in the United States, the town that inspired the company name. The company currently employs 14,000 people and generates an annual revenue of $3.7 billion.

LmPDPSrv stands for Lexmark Printer Driver Plus 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 lmpdpsrv.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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Lmpdpsrv.exe file information

Windows Task Manager with lmpdpsrv
Lmpdpsrv.exe process in Windows Task Manager

The process known as PDP RPC Server belongs to software Printer Driver Plus by DeviceGuys (

Description: Lmpdpsrv.exe is not essential for the Windows OS and causes relatively few problems. Lmpdpsrv.exe is located in a subfolder of C:\Windows\System32—mostly C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\. The file size on Windows 10/8/7/XP is 45,056 bytes. 
The file is not a Windows system file. The software is loaded during the Windows boot process (see Registry key: MACHINE\Run). The program has no visible window. Lmpdpsrv.exe is an unknown file in the Windows folder. The software listens for or sends data on open ports to a LAN or the Internet. Therefore the technical security rating is 73% dangerous, however you should also read the user reviews.

Recommended: Identify lmpdpsrv.exe related errors

External information from Paul Collins:

Important: Some malware camouflages itself as lmpdpsrv.exe. Therefore, you should check the lmpdpsrv.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

Related to a Lexmark printer/scanner. Printer sharing server? Is it required?
  Mr. Google  
I think its my Lexmark printer?
Lexmark Drucker
I think its my Lexmark printer too :-)
Installed as part of some Lexmark printer drivers (filenamed for: Lexmark Printer Driver Plus Server; Service name: PDP RPC Server). Created by DeviceGuys (now ViewAhead/Conexant). Runs local TCP port 1026.
Lexmark Drucker
I have loaded Multiple Lexmark printer drivers (reinstalls included) It just showed up the last time end of Jan, 05
Lexmark - plus. Monitors/configs their printer. Can delay/inhibit shutdown or pwer off because it doesn't want to allow the OS to terminate it.
  Richard Creighton  
I also have a Lexmark Printer; no problems with my system at all.
  Bill Velek  
Linksys Printer Related
  Douglas Price  
Same as above. Pops up after installation of Lexmark Printer
This is used by the Compaq A3000 and is part of the XP driver download from I am not sure why it needs to have internet access (blocked by XP firewall).
  Will Wag  
Not a Pest according to e-Trust
  Bud   (further information)
This is neede for lexmark printer to run. Unintall and you loose all your speed dial info and printer wont print. Just Dont let it communicate with internet. Dont know why it needs internet access but I have refused all connections permanetly and never had a problem. Dont unistall!
  Scott D  
Lexmark printer and scanner sharing application which allows you to share a printer over a network.
  Stephanie Lawrence   (further information)
I do have a Lexmark printer, so ??
It is definitly part of the Lexmark Printer/scanner installation
I see that others have lexmark and so do I
  Marcea Patterson  
came on after I installed Lexmark printer
  its me  
lexmark don't work without it. However, it does not need to access the internet so I blocked it. no problems.
Directly related to the "ViewAhead Photo Center" that was installed at the same time as your Lexmark Printer. Just uninstall "ViewAhead Photo Center" and it is gone
  Lucky1 PC's  
Lexmark related
WinXP did block it from internet access before I in stall Norton Firewall; Norton does not block it from internet access. Will follow Scott D advise to be on the safe side.
Lexmark X125 Printer Driver
Part of lexmark drivers

Rating chart

Summary: Average user rating of lmpdpsrv.exe: based on 24 votes with 26 user comments. 12 users think lmpdpsrv.exe is essential for Windows or an installed application. 2 users think it's probably harmless. 8 users think it's neither essential nor dangerous. One user suspects danger. One user thinks lmpdpsrv.exe is dangerous and recommends removing it. 2 users don't grade lmpdpsrv.exe ("not sure about it").

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Best practices for resolving lmpdpsrv issues

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

lmpdpsrv.exe [all]