What is slpui.dll?

Slpui.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if slpui.dll is a Windows system file or if it belongs to an application that you can trust.

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Slpui.dll file information

The process known as Seiko SLP Printer Driver User Interface belongs to software Seiko SLP Printer Driver by Seiko Instruments USA (

Description: Slpui.dll is not essential for the Windows OS and causes relatively few problems. The file slpui.dll is located in a subfolder of C:\Windows\System32. The file size on Windows 10/8/7/XP is 185,236 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The program has no visible window. Slpui.dll is able to record keyboard inputs. There is no detailed description of this service. Slpui.dll is not a Windows core file. Slpui.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 73% dangerous, however you should also read the user reviews.

Recommended: Identify slpui.dll related errors

Important: Some malware camouflages itself as slpui.dll. Therefore, you should check the slpui.dll 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

This is part of the Smart Label Printer User Interface application stack

Summary: Average user rating of slpui.dll: based on 1 vote with 1 user comment. One user thinks slpui.dll is essential for Windows or an installed application.

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Best practices for resolving slpui issues

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

slpui.dll [all]