alg.exe. What is it?

It’s not absolutely clear which product this file is part of and who is its author. This file is not the Application Layer Gateway Service. If you are looking for information about the legitimate alg.exe file, click here.

Files like this can be dangerous. Make sure alg.exe is a safe file by scanning your computer with Auslogics Antivirus. It’s a hidden file. Alg.exe is usually located in the %PROGRAM_FILES% sub-folder and its usual size is 15,872 bytes.


The alg.exe process can be dangerous, so it's best to disable it. Some other processes use the same file name.


Author: UnkownPart Of: UnknownCommon path(s): subfolder %PROGRAM_FILES%
subfolder %SYSTEM%


Malware risk: Scan your PC for viruses and Trojans
Some viruses infect computers while disguised in the form of legitimate files, like alg.exe. Run an antivirus scan to ensure your PC is clean and safe.
Registry Errors: Free scan (run Registry Cleaner)Uninstallation: N/A Uninstall (run Unistall Manager)Disk & Memory Usage: N/A Free scan (run Task Manager)

User opinions

alg.exe has the following rating: 3.0
based on 11 user opinions.
Add your comment
Thank you for your comment!
by Maria on Aug 8, 2012 at 06:15 AM

I can't fine this file on my computer but I think it is safe

0 | 0
by rudHAs on Sep 25, 2010 at 03:44 PM

Ialg.exe is a need for WIFI

0 | 1
by Jim on Feb 21, 2010 at 10:53 AM

This is NOT a microsoft file! It's a virus!!!

6 | 3
by anubis on Feb 20, 2010 at 06:36 PM

safe microsoft process

2 | 7
by Me on Feb 11, 2010 at 10:01 AM

This is not Application Layer Gateway - the path is different. Just do a search on this site for the legitimate version of alg.exe. That entry will actually say that the file is Application Layer Gateway.

6 | 0
by bundyxc on Feb 7, 2010 at 09:37 PM

It's the Application Layer Gateway service. Not harmful at all...

2 | 6
by Jonathan on Nov 29, 2009 at 07:29 PM

i found a file related to this but named ALG.exe

0 | 1
by armirol on Jul 15, 2009 at 11:02 AM

alg.exe is a microsoft application related to the firewall in \systems32 or in servicepackfiles\i386...just watch which one is running

6 | 2
by Gigi on Jul 2, 2009 at 07:54 PM

alg.exe is needed for the firewall and internet connection sharing and if you don't use either you can disable it with no problems in Application Layer Gateway service in the Control Panel >Administrative Tools >Services

7 | 1
by anderson on Jun 6, 2009 at 04:46 PM

um trojam prorat muito perigoso --------------------------------------- a trojan prorat most dangerous

5 | 9
by Filipe on Jun 6, 2009 at 01:19 PM

Alg is a application of soundcard.

0 | 18
Add your comment
Your name:
Your rating:
unrated file
Characters Type the characters you see in the picture:
Show another picture