What is regsvr32.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the regsvr32.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Regsvr32.exe file information

Windows Task Manager with regsvr32
Regsvr32.exe process in Windows Task Manager

The process known as Microsoft© Register Server belongs to software Microsoft Windows Operating System or Microsoft Visual C by Microsoft (

Description: Regsvr32.exe is an important part of Windows, but often causes problems. The regsvr32.exe file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 14,848 bytes (40% of all occurrences), 11,776 bytes and 6 more variants. 
It is a Microsoft signed file. The program is not visible. Regsvr32.exe is able to monitor applications and manipulate other programs. Therefore the technical security rating is 10% dangerous, however you should also read the user reviews.

Uninstalling this variant: In case you experience problems using regsvr32.exe, you can also safely remove the program using the uninstall program of DivX-Setup (Control Panel ⇒ Uninstall a Program).

Recommended: Identify regsvr32.exe related errors

External information from Paul Collins:

Important: Some malware disguises itself as regsvr32.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the regsvr32.exe 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

command-line tool registers .dll files as command components in the registry
  Andre   (further information)
it listens to ports apparently awaiting some signal I foun it because when shutting down windows thre was somting runnig and I needed to click end now when I listed the processes I found out it takes as much of my processor time as it can get so I selected my windows folder and searched for it found it in system 32 and renamed its file extension now it appears I have no more troubble
It often contains the trojan "Pakes.mzt" in various versions!
It takes a lot of the computer's Mem. usage.
this program registers .dll and .ocx files..It is a normal windows application! Do not delete, if suspicion of virus infects this executable then scan with software to repair. Removal will cause later future programs to install incorrectly rendering them with many errors upon install. ex.. (regsvr32 could not register GDIPlusWrapper.dll )
  Jesse Kilner  
It adds info to registry during software instalation, should -not- be running all the time...
command promt
This application is necessary for registering core dll files as well as for troubleshooting problems.
  Shanmugam   (further information)
The process Microsoft(C) Register Server or Microsoft® Register Server belongs to the software Microsoft Windows Operating System or Microsoft(R) Windows (R) (version 2000 Operating System) or OIN or Besturingssysteem Microsoft Windows or Microsoft Visual C++ by Microsoft Corporation ( or Autodesk (
Opasoft trojan
i have three regsvr32.exe processes running simultaneoulsy taking enormous resources.
19.0 KB (19,456 bytes)
Spotted unusual activity when trying to diagnose an issue with broadband speed. Found regsvr32.exe was sending large amounts of data, constantly, to an AWS address and a address. Assuming it's infected or has been replaced with an infected copy, Webroot did not detect it.
  Marc Hilton  

Rating chart

Summary: Average user rating of regsvr32.exe: based on 19 votes with 13 user comments. 10 users think regsvr32.exe is essential for Windows or an installed application. One user thinks it's probably harmless. 2 users suspect danger. 6 users think regsvr32.exe is dangerous and recommend removing it. 4 users don't grade regsvr32.exe ("not sure about it").

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Best practices for resolving regsvr32 issues

A clean and tidy computer is the key requirement for avoiding problems with regsvr32. 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 regsvr32.exe 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

regsvr32.exe [all]