What is EuShlExt.dll?

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

Click to Run a Free Scan for EuShlExt.dll related errors

EuShlExt.dll file information

The process known as Eudora's Shell Extension belongs to software Eudora or NT Commandline Utilities by Qualcomm (

Description: EuShlExt.dll is not essential for the Windows OS and causes relatively few problems. The EuShlExt.dll file is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\ or in a subfolder of the user's "Documents" folder (mainly C:\Program Files\Qualcomm\Eudora\). Known file sizes on Windows 10/8/7/XP are 86,016 bytes (93% of all occurrences) or 77,824 bytes. 
This is a special .dll file (Dynamic Link Library), which starts automatically when programs are launched. So it can monitor or manipulate all of your program starts. The program has no visible window. EuShlExt.dll is not a Windows core file. It monitors program starts. Therefore the technical security rating is 54% dangerous, however you should also read the user reviews.

Uninstalling this variant: If problems with Eudora or Eudora (8.0.0b5) occur, you can also uninstall the software using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program).

Recommended: Identify EuShlExt.dll related errors

Important: Some malware camouflages itself as EuShlExt.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the EuShlExt.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

Part of Eudora Mail. Shouldn't be dangerous.
gehört zum email programm eudora
Standard Eudora File to help prevent launching programs that might have viruses
  David Carta  
Hadn't used Eudora for a long time when suddenly tonight Outlook express uses EuShlExt.dll in the Eudora folder to send information via UDP outbound. Completely out of the blue! Anyone know why?
Eudora Email
Used by Eudora to pop up a warning if you run a program from the folder you save attachments in.
  Stephen Stewart  
I found that it was corrupting the execution of 16-bit programs (WINFILE.EXE, APPBAR.EXE). Big headache! I say stupid program design.
Long-time Eudora Mail Component. Harmless.
Installed by the Eudora mail client so that whenever you open a file it checks if it a type that you are allowed to open (as specified by Eudora settings). It is not needed if you don't use Eudora or don't care about what attachments you open. It is only supposed to check in your attachments folder but it has a bug that can slow your computer in that it checks your attachments folder with every file you open from Windows Explorer, which can slow down particularly if your attachments are on a network.

Rating chart

Summary: Average user rating of EuShlExt.dll: based on 11 votes with 9 user comments. 6 users think EuShlExt.dll is essential for Windows or an installed application. One user thinks it's probably harmless. 2 users think it's neither essential nor dangerous. 2 users suspect danger.

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Best practices for resolving EuShlExt issues

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

EuShlExt.dll [all]