alg.exe is a program which is most likely NOT a virus or malware. So, if alg.exe is on your PC, it is most likely ok, and will NOT be a cause for concern. Even if your system is virus-free, it is still recommended to run a well-known antivirus with a good detection rate, in order to defend your system against threats.
This program is normally found on disk in C:\WINDOWS\system32\alg.exe.
The MD5 checksum for this file is 764b7a1e6ae2d70416a7932f3b97ac99.
This application is a Windows service. This means it runs on your system in background, usually without showing any user interface to you. Most Windows services are legit programs, which provide useful functions to other programs or to Windows in general.
alg.exe appears to have something to do with Windows SFC (System File Checker) or Windows File Protection.
This executable runs as a 32-bit program. It does not benefit of the full set of features of current PC CPUs. This ordinarily happens because the makers did not bother to upgrade it to 64-bit code.
The description present in the program is Application Layer Gateway Service.
File version extracted from the file 5.1.2600.5512 (xpsp.080413-0852).
Company Microsoft Corporation.
Copyright notice © Microsoft Corporation. All rights reserved..
alg.exe is digitally signed. Nowadays most legit programs are digitally signed.
The digital signature attached to alg.exe verifies as ok. This is most likely a clean, ok program.
Digitally signed by: Microsoft Windows Component Publisher
Certificate's issuer name: Microsoft Windows Verification Intermediate PCA
This program does NOT have an uninstall routine set up in registry.