What is dxdllreg.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 dxdllreg.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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Dxdllreg.exe file information

Windows Task Manager with dxdllreg
Dxdllreg.exe process in Windows Task Manager

The process known as Microsoft DirectX DLL Register appears to belong to software Microsoft DirectX for Windows Operating System or Microsoft DirectX for Windows by Microsoft (

Description: Dxdllreg.exe is not essential for Windows and will often cause problems. The dxdllreg.exe file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 46,592 bytes (40% of all occurrences), 74,240 bytes, 80,896 bytes or 64,512 bytes. 
The program has a visible window. The application is loaded during the Windows boot process (see Registry key: MACHINE\Run). File is hidden. It is not a Windows core file. Therefore the technical security rating is 70% dangerous, however you should also read the user reviews.

Recommended: Identify dxdllreg.exe related errors

External information from Paul Collins:

Important: Some malware camouflages itself as dxdllreg.exe. Therefore, you should check the dxdllreg.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

dxdllreg.exe is an application which is supposed to request you register your version of DirectX, however sometimes it stays resident. Should be removed from the startup
nothing, it is just there, at the start up
  Robert Lejbt  

Summary: Average user rating of dxdllreg.exe: based on 3 votes with 2 user comments. 2 users think it's neither essential nor dangerous. One user thinks dxdllreg.exe is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving dxdllreg issues

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

dxdllreg.exe [all]