What is msiexec.exe? Is msiexec.exe spyware or a virus?

What are you to do to fix msiexec.exe related problems?
1. Run Security Task Manager to check your msiexec.exe process
2. Run Registry Booster to fix msiexec.exe related errors
3. Run Spyware Doctor to remove persistent malware

Process name: Windows® installer or Windows? installer or WindowsR installer
Product: Windows Installer - Unicode or msiexec.exe or CRACK or msiexec.exe
Company: Microsoft Corporation (www.microsoft.com)
File: msiexec.exe


If you want a detailed security rating about your msiexec.exe (and all other running background processes) download the free trial version of Security Task Manager.

Note: Any malware can be named anything - so you should check where the files of the running processes are located on your disk. If a "non-Microsoft" .exe file is located in the C:\Windows or C:\Windows\System32 folder, then there is a high risk for a virus, spyware, trojan or worm infection! Check it out!


Users Opinions

770 users ask for this file. 4 users didn't rate it ("don't know"). 14 users rated it as not dangerous. 2 users rated it as not so dangerous. 1 user rated it as neutral. 1 user rated it as little bit dangerous. 2 users rated it as dangerous.


All comments about msiexec.exe:
Da_Helpa msiexec.exe belongs to the Windows Installer Component and is used to install new programs that use Windows Installer package files (MSI). This program is important for the stable and secure running of your computer and should not be terminated.
Antony Abraham update file for installer helpnet.installshield.com/robo/projects/helplibdevstudio9/IHelpCmdLineMSI.htm
It is a Windows installer file.
Ty its an installer file vital to install applications on windows  See also: Link
Akshay.K msiexec.exe is the executable for the windows installer. This should only be running while you are running an installer. It's also a Windows System File and should be in a system directory. If it is then this application is safe.
chyzweez this file exists in the windows system folder wherein it used to extracts files such as installers. usually it's icon is a computer image almost just like any other installer's icon.
just another annoying windows component
Mr. Nemo If you're not installing anything then it's safe to end it
CB It is a Windows installer file that checks the internet for updates and online components that are associated with your program install
amateur msiexec is just a windows component .. runs when tyou are installing any software..
dakshinamurthy i need to know about the msi file for installing the software
windowsterrorist this file makes some anoying folders in my c: folder when its updating winxp it makes my hard disc a mess
Volkan KAYA i am installing Office 2007 now and that msiexec.exe file is runnig and make me carsy. that is all
anubis.uk it is a hacker file there are to files called msi 1 is windows file 2 is a hackers file for bf2 and more games msi is dangerous if it looks like this msi.exe do not tick the box on your firewall if it looks like this msiexec.exe you are ok to tick it
Poppa Ryno Used to install new programs,
Carl F Campbell I have been trying to delete CTFMON.EXE from windows 2000. When it is being blocked the "Installer" window trys to force a function everytime I open internet explorer. It locks up the computer until I go to Task Manager to "End Task" (installer)?
seximami omg delete this file. it is malware.
jb used with diskcleanup

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More process information

Is msiexec.exe spyware or a virus, trojans, adware or worm? Is there a known msiexec.exe error?


Other Processes

msiexec.exe [all processes]