What is Inst.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 Inst.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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Inst.exe file information

Windows Task Manager with Inst
Inst.exe process in Windows Task Manager

The process known as KC Setup XP MFC Application or Inst MFC Application belongs to software KC Setup XP Application or Inst Application by unknown.

Description: Inst.exe is not essential for Windows and will often cause problems. Inst.exe is located in a subfolder of C:\Windows or sometimes in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 20,480 bytes. 
Inst.exe is a file with no information about its developer. The software is loaded during the Windows boot process (see Registry key: MACHINE\Run). Inst.exe is not a Windows system file. The program is not visible. The Inst.exe file is located in the Windows folder, but it is not a Windows core file. Therefore the technical security rating is 58% dangerous, however you should also read the user reviews.

Recommended: Identify Inst.exe related errors

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

installed by IRXpress software for USB IrDA adapters
KC Setup XP appears to be related to IrDA software installation package by KC Technology, Inc. used by Actisys IrDA products ( KC Technologies web site ( seems defunct.
  unknown   (further information)
Inst.exe is part of Sweex USB-IrDA driver. In some cases may cause errors (while debugging Delphi applications etc)
It is installed by IRXpress software for USB IrDA adapters usuage
I also have a crashing inst.exe by KC and I develop for the Casio IT500 PDA. This has an IRXpress USB IrDA adapter.
KC Setup XP on my system is related to IrDA software and is a part of the package "IRXpress.exe" . It came with the Sitecom USB-IrDA receiver.
  Roger   (further information)
Yeah, this one's always crashing after I installed IrDA software for UFIR-K(3.2)
Sitecom CN-100 USB to fast IrDA adapter driver and Casio PDA IR cradle
  Peter   (further information)
inst.exe is used by VSO's ConvertXtoDVD for installing pattin couffin driver
Its part of USB IrDA software
Inst.exe is spyware, trojan Generic downloader . First of all i never have install norton or symantec Anti virus. It install antivirus exclusion rules for hem self. Change Inst.exe extension to Inst.txt and you'll see the code: /assembly PAPADDINGXXPADDINGPADDING...
VirusTotal 0/47, VSO Software product, site rating - benign.

Rating chart

Summary: Average user rating of Inst.exe: based on 14 votes with 12 user comments. 3 users think Inst.exe is essential for Windows or an installed application. 4 users think it's probably harmless. 5 users think it's neither essential nor dangerous. One user suspects danger. One user thinks Inst.exe is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving Inst issues

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

Inst.exe [all]