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What does the BCMSMMSG.exe file do?

The BCMSMMSG.exe process is also known as Modem Messaging Applet and is a part of BCM Modem Messaging Applet. This software is produced by Broadcom (www.broadcom.com). An obsolete or defective version of BCMSMMSG.exe can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about BCMSMMSG.exe Modem Messaging Applet

BCMSMMSG.exe is not part of Windows, but it is important nonetheless. The file BCMSMMSG.exe is found in the C:\Windows directory. The file size is 122,880 bytes.
The program executes in the background, and can only be terminated using Windows Task Manager. The file does not come from Microsoft and is not part of the operating system. Windows starts the process each time that the computer boots up (Registry: MACHINE\Run). To verify its trustworthiness, Microsoft has provided it with an embedded certificate. For this reason, 35% 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 BCMSMMSG.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 BCMSMMSG?

Used for dial up modem...harmless
Charter Guy
I know very little but from some research I did a few moments ago, it is "driver software for BCM Voice Modems." A different site told me it is of no risk to your system. And it's Microsoft signed so its probably fine..
Used for broadcom 100mbit network cards
The file is needed to use a Broadcom BCM modem
One of many names the .Zerf virus goes by.
Bob K

Summary: 10 users judge BCMSMMSG.exe to be an essential file that should not be touched. For this reason, one user has already deleted BCMSMMSG.exe. source: file.net

How to uninstall BCM Modem Messaging Applet

To remove Modem Messaging Applet from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. You find it in the lower left corner of the taskbar.
  2. Type the word uninstall.
  3. Click Add or remove programs.
  4. Now locate BCM Modem Messaging Applet in the list of displayed applications.
  5. Click the program, and then click Uninstall.
Remove software in Windows 10
BCMSMMSG.exe Modem Messaging Applet fix

How to tell if BCMSMMSG.exe (Modem Messaging Applet) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of Modem Messaging Applet. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Modem Messaging Applet or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or BCMSMMSG.exe is causing problems for you, a good Windows diagnostic tool may very well 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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