What is wmfhotfix.dll?

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

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Wmfhotfix.dll file information

The process known as Windows WMF Metafile Vulnerability HotFix (version 1.4, 1.2, 1.1) or WMFHotFix, MSI (version 1, Hotfix Version 14) belongs to software Windows WMF Metafile Vulnerability HotFix or WMFHotFix, MSI (version 1, Hotfix Version 14, 1,, 1, Hotfix Version) by Ilfak Guilfanov

Description: Wmfhotfix.dll is not essential for the Windows OS and causes relatively few problems. The file wmfhotfix.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 3,584 bytes (95% of all occurrences) or 3,072 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. There is no file information. It is not a Windows system file. The program is not visible. The service has no detailed description. It can change the behavior of other programs or manipulate other programs. The process starts upon Windows startup (see Registry key: AppInit_DLLs). The process can be removed using the Control Panel's Add\Remove programs applet. wmfhotfix.dll appears to be a compressed file. Therefore the technical security rating is 85% dangerous, however you should also read the user reviews.

Uninstalling this variant: If problems with Windows WMF Metafile Vulnerability HotFix or Windows WMF Metafile come up, you can turn to the software developer, Hexblog, for advice, update to a possibly corrected version or uninstall it software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7).

Recommended: Identify wmfhotfix.dll related errors

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

Windows WMF Metafile Vulnerability HotFix
  blu   (further information)
This is an unofficial fix for the windows WMF issues, not harmless
Unofficial patch for wmf windows vulnerability, released before official microsoft patch
Fixes windows WMF vulnerability
  Kender   (further information)
It's an unofficial patch to help protect you from the WMF exploit in windows, the official patch will be released jan 10th.
  Liberia   (further information)
Fixer for WMF vulnerability
  Travis   (further information)
A third party patch for the Windows WMF exploit
  Simon   (further information)

Rating chart

Summary: Average user rating of wmfhotfix.dll: based on 10 votes with 8 user comments. 6 users think wmfhotfix.dll is essential for Windows or an installed application. 2 users think it's probably harmless. 2 users think it's neither essential nor dangerous.

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Best practices for resolving wmfhotfix issues

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

wmfhotfix.dll [all]