What does the msimn.exe file do?
The msimn.exe process is also known as Outlook Express and is a part of Microsoft Windows Operating System. This software is produced by Microsoft (www.microsoft.com). An outdated or faulty version of msimn.exe can cause problems for your computer, ranging from slowness to error messages like these:
- Outlook Express has stopped working. Windows is checking for a solution to the problem... (Windows 11, 10, 7)
- Outlook Express has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available. (Windows 11, 10, 7)
- msimn.exe has encountered a problem and needs to close.
- Access violation at address FFFFFFFF in module msimn.exe. Read of address 00000000.
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What you should know about msimn.exe Outlook Express
The original msimn.exe file is definitely a Windows system file, but many viruses use the same name in order to remain unnoticed. Msimn.exe is found in a subdirectory of "C:\Program Files".
Frequently occurring are file sizes such as 60,416 bytes (60% of all these files), 320,512 bytes or, as the case may be, 62,464 bytes.
This file has been digitally signed by Microsoft itself to guarantee its authenticity.
For this reason, 2% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.
If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves msimn.exe. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.
What do other computer users say about msimn?
| File msimn.exe is the main executable for Microsoft Outlook Express, which is an email and news group client that is installed with the Windows Operating system. Be sure to always check whether you have installed the latest updates since many worm viruses are exploiting this program to infect your system | |
| It is an extension of Outlook. Used for playing sound from your outlook e-mails. | |
| it would not download - XP microsoft update of security patch - error#oX3F5? Ann G. | |
| uses 100% of my CPU capacity Bob | |
| caused all my user name, passwords boxes to automatically fill with ----------------------- wcwillis |
Summary: 6 users consider msimn.exe essential and should not be removed. 4 users consider it harmless. However, 3 users consider this to be a suspicious process and would like to get rid of it. For this reason, 2 users have already removed msimn.exe. source: file.net
How to uninstall the program
To remove Outlook Express from your computer, please follow the manual instructions below.
- Click the Windows Start Button. You can find it in the lower-left corner of the taskbar.
- Type 'uninstall'.
- Click Add or remove programs.
- Now locate the program in the list of displayed applications.
- Click the program, and then click Uninstall.
How to check if msimn.exe (Outlook Express) was uninstalled completely
After uninstalling, restart your computer. Then open Windows Explorer and check if a folder with the software name still exists under C:\Program Files. Also, check the Registry for remnants of Outlook Express. To do this, start Regedit, then look under HKEY_LOCAL_MACHINE > Software for: Outlook Express or the name of the producer. Keep in mind that only a computer professional should delete entries in the Windows Registry directly.
Last but not least
If Windows is not working properly, startup is slow, or msimn.exe is causing problems, a good Windows diagnostic tool may help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.
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