What is dw20.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 dw20.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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Dw20.exe file information

Windows Task Manager with dw20
Dw20.exe process in Windows Task Manager

The process known as Microsoft Application Error Reporting or Microsoft .NET Error Reporting Shim belongs to software Microsoft Application Error Reporting or Microsoft .NET Framework or Microsoft Office Enterprise by Microsoft (

Description: Dw20.exe is not essential for Windows and will often cause problems. Dw20.exe is located in a subfolder of "C:\Program Files\Common Files". Known file sizes on Windows 10/8/7/XP are 813,384 bytes (27% of all occurrences), 809,438 bytes and 4 more variants. 
The dw20.exe file is certified by a trustworthy company. Dw20.exe is not a Windows system file. The program has no visible window. Dw20.exe is able to monitor applications and manipulate other programs. Therefore the technical security rating is 19% dangerous, however you should also read the user reviews.

Uninstalling this variant: In case of problems with dw20.exe, you can also completely remove Microsoft Application Error Reporting or Microsoft Office Enterprise (Control Panel ⇒ Uninstall a Program) or look for help from the software company Microsoft.

Recommended: Identify dw20.exe related errors

If dw20.exe is located in a subfolder of C:\Windows, the security rating is 0% dangerous. The file size is 43,664 bytes (42% of all occurrences), 33,096 bytes, 33,936 bytes or 42,824 bytes. The dw20.exe file is a Windows core system file. The dw20.exe file is a Microsoft signed file. The dw20.exe file is digitally signed. The program has no visible window. Dw20.exe is able to record keyboard and mouse inputs.

Important: Some malware camouflages itself as dw20.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the dw20.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

dw20.exe is the Application Error Reporting client included with Microsoft Office 2003, a tool that collects information automatically whenever an Office application crashes and allows users to send a report directly to Microsoft. Microsoft uses the data to address problems and enhance future versions of the applications. This tool is an essential process and should not be removed.
  John   (further information)
Dr. Watson für Office, überflüssige MS Spyware
Eror reportig or Office 2003, Nothing more. It is not an essential part of office - just feedback for MS io crash information. They do not even need it anymore as the suite is 10 years old.
dw20.exe i have found to be harmful, do not accept. but it can freeze any application. I have now found the best way to click on to the X in the top RH corner. and it goes away

Rating chart

Summary: Average user rating of dw20.exe: based on 7 votes with 4 user comments. One user thinks dw20.exe is essential for Windows or an installed application. One user thinks it's probably harmless. 2 users think it's neither essential nor dangerous. One user suspects danger. 2 users think dw20.exe is dangerous and recommend removing it.

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Best practices for resolving dw20 issues

A clean and tidy computer is the key requirement for avoiding problems with dw20. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the dw20.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

dw20.exe [all]