alg.exe is a application which is probably NOT a virus. So, if alg.exe is on your computer, it is probably ok, and will NOT be a cause for concern. Even if your system is clean, we still advise you to use a good antivirus with a good detection rate, in order to yourself your PC against viruses and malware.
This application is usually found on disk in C:\WINDOWS\system32\alg.exe.
The MD5 fingerprint for this executable is 1f559252e6d787b9b48463bb2c8ceac2.
This application is a Windows service. This means it operates on your PC in background, usually without displaying any user interface to you. Most Windows services are ok programs, which perform useful features to other programs or to the Windows Operating System.
alg.exe seems to use the functions of Windows SFC (System File Checker) or Windows File Protection.
This exe runs in 32-bit mode. It can not benefit of the full set of features of nowadays' computer processors. This is quite normal because the makers did not bother to upgrade it to 64-bit code.
The description stored in the exe is Application Layer Gateway Service.
File version extracted from the file 5.1.2600.5512 (xpsp.080413-0852).
Company Microsoft Corporation.
Legal copyright © Microsoft Corporation. All rights reserved..
alg.exe is digitally signed. Today the large majority of clean software applications are digitally signed.
The digital signature extracted from alg.exe is valid. This is excellent.
Digital certificate name: Microsoft Windows Component Publisher
Certificate's issuer name: Microsoft Windows Verification Intermediate PCA
This program does NOT have a removal routine set up in registry.