What is winrnr.dll?

Winrnr.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 winrnr.dll is a Windows system file or if it belongs to an application that you can trust.

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Winrnr.dll file information

The process known as LDAP RnR Provider DLL belongs to software Microsoft Windows Operating System by Microsoft (

Description: Winrnr.dll is not essential for the Windows OS and causes relatively few problems. Winrnr.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 16,896 bytes (45% of all occurrences), 20,992 bytes, 23,040 bytes, 23,552 bytes or 19,968 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. It can change the behavior of other programs or manipulate other programs. The program has no visible window. The service has no detailed description. The file is not a Windows system file. The winrnr.dll file is a trustworthy file from Microsoft. winrnr.dll appears to be a compressed file. Therefore the technical security rating is 38% dangerous, however you should also read the user reviews.

Recommended: Identify winrnr.dll related errors

Important: Some malware disguises itself as winrnr.dll, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the winrnr.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

Meine Dateigröße passt nicht in die genannten Prozentzahlen, sie hat bei mir 31kB, update August 2016. Wurde sie geändert vom Hersteller oder von ??? und wieso ist meine Bibliothek größer als andere? G-Data hat sie zumindest als virenfrei bezeichnet, Rest offen.

One user is not sure about it.

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Best practices for resolving winrnr issues

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

winrnr.dll [all]