What is dlbtcoms.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 dlbtcoms.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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Dlbtcoms.exe file information

The process known as Dell Communication System or Printer Communication System belongs to software dlbt_device or Dell Communication System or Printer Communication System by Dell (

Description: Dlbtcoms.exe is not essential for Windows and will often cause problems. The dlbtcoms.exe file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 421,888 bytes (66% of all occurrences), 466,944 bytes or 538,096 bytes. 
The program has no visible window. It is a Microsoft signed file. The file is not a Windows core file. Therefore the technical security rating is 13% dangerous, however you should also read the user reviews.

Recommended: Identify dlbtcoms.exe related errors

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

It's running on a Dell Optiplex I have, but not sure if it's malware. It's in the System32 folder...and the service doesn't have a description like the Microsoft ones do, so it's suspicious
i deleeted the dlbtcoms.exe process...from the user...not the system though
process that is used for wireless communication. Disabling can cause random unscheduled signal drops for wireless cards and other devices. Operates the dlbt_device service
  Don Juan  
Anti virus detected it as malicious and trying to connect. I can't delete it , it tels me acces is denied. File is write protected or may be in use...
on my XP box, prevents other applications from starting (including the network) as long as it is running, which is about 10 minutes after startup. only had problems after installing new dell wireless printer.
  Jim Michaels  

Summary: Average user rating of dlbtcoms.exe: based on 4 votes with 5 user comments. One user thinks it's probably harmless. 3 users suspect danger. One user is not sure about it.

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Best practices for resolving dlbtcoms issues

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

dlbtcoms.exe [all]