What is IoLogMsg.dll?

The genuine IoLogMsg.dll file is a software component of Microsoft Windows Operating Systems by Microsoft.
"IoLogMsg.dll" is a Windows input/output message logging DLL file. It monitors and logs certain Windows events and issues, typically related to drivers like hard drives, DVD drives, usb ports, etc. The file contains text for all NTSTATUS.H standard codes. Microsoft began in 1975 with basic code technology and has grown to become a leading technological corporation, supplying hardware, application software, and operating systems used by billions worldwide.

iologmsg stands for input output logging messages

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

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IoLogMsg.dll file information

The process known as IO Logging DLL belongs to software Microsoft Windows Operating System by Microsoft (

Description: The original IoLogMsg.dll is an important part of Windows and rarely causes problems. IoLogMsg.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 30,720 bytes (48% of all occurrences), 37,888 bytes and 8 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The file is a Windows core system file. The program is not visible. The program is not active. The file is a Microsoft signed file. IoLogMsg.dll appears to be a compressed file. Therefore the technical security rating is 0% dangerous, however you should also read the user reviews.

Recommended: Identify IoLogMsg.dll related errors

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

Ich bin Benutzer der T-Online Software 5.0 Nachdem ich das neue Uptate von Microsoft installiert habe, kann ich ├╝ber die T-Online Software meine HomeBanking nicht mehr nutzen, da beim Bet├Ątigen des Button "Banking" der Computer sofort auf der Festplatte diese datei sucht und nicht findet. Ich habe bereits T-Online 6.0 installiert, das gleiche Problem.
solves the problem
It is located in very sensitive areas of your Computer, it can control your entire Computer, it has done this to mine, go into your Registry, go to Find, type, iolo keep repeating this process and you will be amazed where all the iolo dlls are located, check it out. I was cleaning MY Registry and taking OWNERSHIP, of various programs and files which is my RIGHT under Permission laws. I acted under ADMINISTRATOR and OWNERSHIP RIGHTS, Rules. Microsoft unleashed this stealth CONTROL Spyware on my Computer. Thisd element is all controlling, it will come out as more People experience what I have.
iologmsg.dll is there to report in the system log for every registered service

Summary: Average user rating of IoLogMsg.dll: based on 5 votes with 4 user comments. 3 users think IoLogMsg.dll is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks IoLogMsg.dll is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving IoLogMsg issues

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

IoLogMsg.dll [all]