What is SimpleExt.dll?

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

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SimpleExt.dll file information

The process known as ZJMedia SimpleExt belongs to software WinAVI Video Converter by ZJMedia (

Description: SimpleExt.dll is not essential for Windows and will often cause problems. SimpleExt.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 6,656 bytes (87% of all occurrences) or 32,837 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The program has no visible window. There is no detailed description of this service. It can change the behavior of other programs or manipulate other programs. SimpleExt.dll is not a Windows system file. There is no description of the program. Therefore the technical security rating is 77% dangerous, however you should also read the user reviews.

Uninstalling this variant: If there are any problems with SimpleExt.dll, you can uninstall WinAVIVideoConverter or WinAVI Video Converter software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7).

Recommended: Identify SimpleExt.dll related errors

If SimpleExt.dll is located in the C:\Windows\System32 folder, the security rating is 72% dangerous. The file size is 507,904 bytes. It is a file with no information about its developer. It can change the behavior of other programs or manipulate other programs. The program is not visible. The service has no detailed description. SimpleExt.dll is not a Windows system file.

Important: Some malware camouflages itself as SimpleExt.dll. Therefore, you should check the SimpleExt.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

This file belongs to WinAVI Video Converter

Summary: Average user rating of SimpleExt.dll: based on 1 vote with 1 user comment. One user thinks it's neither essential nor dangerous.

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Best practices for resolving SimpleExt issues

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

SimpleExt.dll [all]