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Program info

Estimated safety rating


alg.exe is a program which is most likely legit. So, if alg.exe is on your laptop or desktop computer, it is most likely ok, and will NOT cause problems. Even if your system is clean, it is still recommended to use a well-known antivirus with a good detection rate, in order to defend your PC against potential security problems.

Executable file path


Normally, this program is stored in C:\WINDOWS\system32\alg.exe.

MD5 hash of the executable file


The MD5 checksum for this file is 3095da6a578656a4486d13728d6826ee.

Is running as a service


This program is registered as a Windows service. This means it operates on your PC in background, usually without showing anything to you. Most Windows services are useful programs, which perform useful functions to other applications or to the Windows Operating System.

Belongs to the operating system


alg.exe appears to use the functions of Windows SFC (System File Checker) or Windows File Protection.

Is a 32 bit executable file


This application runs as a 32-bit program. It can not exploit the entire set of features of nowadays' computer processors. This is quite normal because the publishers did not upgrade it to 64-bit code.

File description

 Application Layer Gateway Service

The description stored in the file is Application Layer Gateway Service.

File version

 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)

File version stored as a property 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158).


 Microsoft Corporation

Company name Microsoft Corporation.


 © Microsoft Corporation. All rights reserved.

Legal copyright notice © Microsoft Corporation. All rights reserved..

Digitally signed


alg.exe has a digital signature. Today the large majority of serious software applications are digitally signed.

Valid digital signature


The digital signature found in alg.exe verifies as ok. This is excellent.

Certifier name

 Microsoft Windows Publisher

Digitally signed by: Microsoft Windows Publisher

Issuer name

 Microsoft Windows Verification Intermediate PCA

Certificate's issuer name: Microsoft Windows Verification Intermediate PCA

Can be uninstalled


This program does NOT have an uninstall routine stored in registry.