What is dfmirage?

The genuine dfmirage.sys file is a software component of Mirage Driver by DemoForge.
Dfmirage.sys is part of the DFMirage driver as a component of its video driver mirroring technology. The virtual video device is managed at the DDML (Display Driver Management Layer) level of the graphics processing that mirrors the drawing operations of physical display devices. DemoForge creates realistic software demos to simulate software products to demonstrate them on different machines without the need of downloading, with full mouse and screen activity duplicated. Pop-up text messages can be inserted to any place in the demo clip, as captions for each step.

DFMirage stands for Demo Forge Mirage Driver

Dfmirage.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if dfmirage.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for dfmirage drivers in need of updating

Dfmirage.sys file information

The process known as Mirage Driver belongs to software Mirage Driver or Screencaster Plug-in for IE by DemoForge (

Description: Dfmirage.sys is not essential for the Windows OS and causes relatively few problems. Dfmirage.sys is located in the C:\Windows\System32\drivers folder. The file size on Windows 10/8/7/XP is 31,896 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. There is no detailed description of this service. The dfmirage.sys file is not a Windows core file. It is a Verisign signed file. The file is a Microsoft signed file. The file is digitally signed. dfmirage.sys appears to be a compressed file. Therefore the technical security rating is 0% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you encounter difficulties with dfmirage.sys, you can remove the entire program Screencaster Plug-in for IE using Windows Control Panel.

Recommended: Identify dfmirage.sys related errors

Important: Some malware disguises itself as dfmirage.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the dfmirage.sys 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

DFmirage is a screen mirroring driver that allows video to be copied from the screen more efficiently. Often used in VNC applications such as tightVNC for remote desktop viewing.
  Chaotis   (further information)
This is the DemoForge mirror driver. It installs a virtual display device that mirrors what is displayed on your actual screen. This display device can be accessed by software that wants to record or access what is shown on your screen, for example remote-desktop software like VNC, or screen recording software (for example software for creating video tutorials). It is not dangerous by itself, though it could possibly be used by malware that wanted to see what's on your screen.
  TerrorBite   (further information)

Summary: Average user rating of dfmirage.sys: based on 4 votes with 2 user comments. 2 users think dfmirage.sys is essential for Windows or an installed application. 2 users think it's neither essential nor dangerous.

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Best practices for resolving dfmirage issues

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

dfmirage.sys [all]