Most antivirus programs identify rlls.dll as malware—e.g. Avast identifies it as Win32:Relevant-P [PUP], and Kaspersky identifies it as not-a-virus:WebToolbar.Win32.RK.db.
The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.
The process known as RelevantKnowledge belongs to software RelevantKnowledge or TMRG by TMRG, (www.tmrginc.com).
Description: Rlls.dll is not essential for Windows and will often cause problems. Rlls.dll is located in the C:\Windows\System32 folder.
Known file sizes on Windows 10/11/7 are 593,688 bytes (20% of all occurrences), 733,464 bytes and 17 more variants.	
 
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. The service has no detailed description. Rlls.dll is not a Windows system file. Rlls.dll is certified by a trustworthy company. It can change the behavior of other programs or manipulate other programs. The file is a Verisign signed file. 
Rlls.dll is able to manipulate other programs, connect to the Internet, monitor applications and record keyboard and mouse inputs. 
Therefore the technical security rating is 58% dangerous, however you should also read the user reviews.
Recommended: Identify rlls.dll related errors
Important: You should check the rlls.dll process on your PC to see if it is a threat. If RelevantKnowledge has changed your browser's search engine and start page, you can recover your browser's default settings as follows:
Reset default browser settings for Internet-Explorer ▾
The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active rlls process on your computer and clearly tells you what it is doing. A good Bantivirus tool detects whether the rlls.dll file on your PC might be malware slowing down your system. Such unwanted programs are often not classified as viruses by other antivirus software and therefore go undetected.
A clean and tidy computer is the key requirement for avoiding PC trouble. 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 executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To restore the original performance and remove unnecessary programs, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.
cgmopenbho.dll prxtbutor.dll avpui.exe rlls.dll epower_dmc.exe rs_service.exe apsinsmonsvc.exe hidmonitorsvc.exe nordvpn.exe stij.exe architect manager.exe [all]
Score
User Comments
John Hencock
mihutiu norbert
Mike (further information)
LaTasha Arnett, IT Lab, Alice Lloyd College
Raj - Microsoft Support Professional (further information)
Yoyó
jpianoman8
vogeltje25
Keith Dunne (further information)
Mark, Geek...
Patrik
Calder H.
vignesh ravi
pcJean
Tymon
Darksun
Summary: Average user rating of rlls.dll: based on 23 votes with 19 user comments. One user thinks rlls.dll is essential for Windows or an installed application. One user thinks it's probably harmless. 2 users suspect danger. 19 users think rlls.dll is dangerous and recommend removing it. 2 users don't grade rlls.dll ("not sure about it").