What is DWFShellExtension.dll?

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

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DWFShellExtension.dll file information

The process known as Autodesk DWF ShellExtension Module belongs to software Autodesk DWF Viewer (version 7) or Autodesk Design Review (version 2008, 2009) by Autodesk (

Description: DWFShellExtension.dll is not essential for the Windows OS and causes relatively few problems. DWFShellExtension.dll is located in a subfolder of "C:\Program Files\Common Files". Known file sizes on Windows 10/8/7/XP are 2,913,904 bytes (50% of all occurrences), 1,805,424 bytes, 3,642,680 bytes or 2,947,136 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. You can uninstall this program in the Control Panel. The DWFShellExtension.dll file is a Verisign signed file. The file has a digital signature. There is no detailed description of this service. It can change the behavior of other programs or manipulate other programs. The DWFShellExtension.dll file is not a Windows system file. DWFShellExtension.dll is able to monitor applications. Therefore the technical security rating is 34% dangerous.

Uninstalling this variant: If you want to remove the program completely, go to Control Panel ⇒ Software ⇒ Autodesk DWF Viewer 7 or Autodesk Design Review 2009.

Recommended: Identify DWFShellExtension.dll related errors

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


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Best practices for resolving DWFShellExtension issues

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

DWFShellExtension.dll [all]