Most antivirus programs identify rlai.dll as malware—for instance Sophos identifies it as RKnowledge, and Symantec identifies it as Adware.Borlan.
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.
Description: Rlai.dll is not essential for the Windows OS and causes relatively few problems. Rlai.dll is located in the C:\Windows\System32 folder or sometimes in a subfolder of "C:\Program Files".
The file size on Windows 10/8/7/XP is 118,784 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 is not visible. There is no detailed description of this service. It can change the behavior of other programs or manipulate other programs. The rlai.dll file is not a Windows core file. The program starts upon Windows startup (see Registry key: AppInit_DLLs). Therefore the technical security rating is 77% dangerous, however you should also read the user reviews.
Recommended: Identify rlai.dll related errors
Important: You should check the rlai.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 rlai process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the rlai.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.
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, 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.