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What is alg.exe?

Part of Application Layer Gateway Service by Microsoft

What is it?

The Application Layer Gateway Service provides support for 3rd party protocol plug-ins for Internet Connection Sharing (ICS).

What if I disable Application Layer Gateway Service?

If you are not using Internet Connection Sharing (ICS) service, the Application Layer Gateway Service and Internet Connection Sharing (ICS) can be safely disabled.
Description of alg.exe from Microsoft
“Internet Connection Sharing (ICS) is the use of a device with Internet access such as 3G cellular service, broadband via Ethernet, or other Internet gateway as an access point for other devices. It was implemented by Microsoft as a feature of its Windows operating system for sharing a single Internet connection on one computer between other computers on the same local area network. It makes use of DHCP and network address translation (NAT). ICS offers configuration for other standard services and some configuration of NAT.”
(alg.exe is a system file that is installed with Windows)
Download Boost and enjoy your PC. Speed up Application Layer Gateway Service and optimize your PC.

How does alg.exe run?

Service - alg.exe runs as a background Windows service called 'ALG' (Υπηρεσία πύλης επιπέδου εφαρμογής). This is a system service that is installed with the Windows operating system and protected with Window's File Protection. This service runs as the LOCAL SERVICE account with minimum privileges on the local computer and presents anonymous credentials on the network. Υπηρεσία πύλης επιπέδου εφαρμογής runs as a program that can be started by the Service Controller and that obeys the service control protocol. This type of service runs in a process by itself.

Community

What is the community is seeing?What is the community is doing?
About 0.6% of all Boost users have the alg.exe process running.Of the 0.6% of alg.exe users, less than 1% have disabled it.
How resource intensive is alg.exe?
Comparison based on the average resource utilization across all programs.
0.00093% CPU9288.0%
Average CPU utilization across all programs is 0.00001%.
     1.43 MB RAM6.6%
Average private memory utilization across all programs is 21.53 MB.
 2 /min0.1%
Average I/O read and write operations for all programs is 2,253 per minute.
Typical file (disk image) location:
C:\Windows\System32\alg.exe

Are there other versions of Application Layer Gateway Serv...?

alg.exe - version 6.2.9200.16384 (win8_rtm.120725-1247)
alg.exe - version 6.1.7600.16385 (win7_rtm.090713-1255)
alg.exe - version 6.1.7600.16385 (win7_rtm.090713-1255)
alg.exe - version 6.0.6000.16386 (vista_rtm.061101-2205) (this)
alg.exe - version 6.0.6000.16386 (vista_rtm.061101-2205)
alg.exe - version 6.0.6000.16386 (vista_rtm.061101-2205)
Why are multiple of the same versions listed?

What else is related?

themeui.dll (Windows-Design-API by Microsoft)
sstext3d.scr (Direct3D-Textbildschirmschoner by Microsoft)
photoviewershim.dll (Windows Live Photo Gallery by Microsoft)
logonui.exe (Windows-Anmeldebenutzeroberfläche by Microsoft)
msxml4a.dll (Microsoft(R) MSXML 4.0 SP1 by Microsoft)
msxml4r.dll (Microsoft(R) MSXML 4.0 SP1 by Microsoft)
msxml4.dll (Microsoft(R) MSXML 4.0 SP 2 by Microsoft)
freecell.exe (Entertainment Pack FreeCell Game by Microsoft)
wiaacmgr.exe (Windows Picture Acquisition Wizard by Microsoft)
prodaiintl1033.dll (ProdAddInIntl by Microsoft)
mimectl.dll (Microsoft® Exchange by Microsoft)
msvcp60.dll (Microsoft (R) Visual C++ by Microsoft)
rstrui.exe (System Restore Application by Microsoft)
dismhost.exe (Dism Host Servicing Process by Microsoft)
bcmsqlstartupsvc.exe (Business Contact Manager for Microsoft Outlook 2010 by Microsoft)
msonsext.dll (Microsoft Office by Microsoft)
encwcbar.dll (Microsoft Encarta by Microsoft)
workfolderssvc.dll (Microsoft® Work Folders Service by Microsoft)
appreadiness.dll (AppReadiness by Microsoft)
ole32.dll (Microsoft OLE for Windows by Microsoft)
microsoft.biztalk.brmacontrols.dll (Microsoft (R) BizTalk (R) Server 2010 by Microsoft)
ssoconfig.exe (Microsoft® Enterprise Single Sign-On by Microsoft)

What Windows OS versions does this run on?

Microsoft Windows XP (5.1.2600.196608)
Windows Vista (TM) Home Basic (6.0.6001.65536)
Windows Vista (TM) Home Premium (6.0.6001.65536)
Windows Vista (TM) Ultimate (6.0.6001.65536)
Windows Vista (TM) Business (6.0.6002.131072)
Windows Vista (TM) Home Basic (6.0.6002.131072)
Windows Vista (TM) Home Premium (6.0.6002.131072)
Windows Vista (TM) Ultimate (6.0.6002.131072)
Windows Vista Home Premium (6.0.6002.131072)
Windows Vista Ultimate (6.0.6002.131072)

About Microsoft Corporation

Microsoft, founded in 1975 by Bill Gates and Paul Allen, is a veteran software company, best known for its Microsoft Windows operating system and the Microsoft More...
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File details

File name: alg.exe
Publisher: Microsoft Corporation (verified)
Name: Application Layer Gateway Service
Description: Microsoft® Windows® Operating System
Version: 6.0.6000.16386 (vista_rtm.061101-2205)
Product version: 6.0.6000.16386
Size: 58 KB
Original file name: ALG.exe.mui
Windows file protection: Yes

Resource utilization

CPU utilization averages
Total CPU: 0.0017763369%
Privileged CPU: 0.0008475404%
User CPU: 0.00092879645239%
Privileged CPU time: 169021.89 ms
Privileged CPU time /min: 0 ms
CPU cycle count: 129,135,755
CPU cycle count /min: 334,354
Memory utilization averages
Committed memory: 35.17 MB
Peak committed memory: 36.25 MB
Paged memory: 1.43 MB
Peak paged memory: 1.48 MB
Paged system memory: 56.06 KB
Non-paged system memory: 3.06 KB
Working set memory: 2.19 MB
Peak working set memory: 3.98 MB
Min working set memory: 2.07 MB
Private memory: 1.43 MB
Page faults: 2,155
Page faults /min: 4
Process I/O averages
Total read operations: 5
Read operations /min: 1
Total read transfer: 1.67 KB
Read transfer /min: 0 Bytes
Total write operations: 3
Write operations /min: 1
Total write transfer: 183 Bytes
Write transfer /min: 0 Bytes
Total other operations: 555
Other operations /min: 2
Total other transfer: 1.71 KB
Other Transfer /min: 3 Bytes
Resources
Handle count average: 75
Thread count average: 3
Thread resource averages
advapi32.dll

Process details

Runs as (owner): Local Service
Integrety level: System
Windows platform: 32-bit
Runs as a service: Yes
Parent Process
services.exe (Services and Controller app by Microsoft)
Process Command
C:\Windows\System32\alg.exe

Service details

Name: Υπηρεσία πύλης επιπέδου εφαρμογής
Service name: ALG
Service type: Win32OwnProcess
Description: “Παρέχει υποστήριξη για προσθήκες πρωτοκόλλων άλλων κατασκευαστών για την Κοινόχρηστη σύνδεση στο Internet”

Network connectivity

TCP: localhost on port 49959

Image hashes

MD5: a1545b731579895d8cc44fc0481c1192
SHA-1: 1414ab5da123748f62207d663153b43d4dc4abf5
SHA-256: 6b0ee833ba39c142d625a03586ccd8f6c9c3136c603ce5df5bac1aa3423e3e7f

PE image details

Subsystem: Windows GUI
Langauge*: Microsoft Visual C++
File entropy: 6.35313
File packed: No
Import Table
advapi32.dll
api-ms-win-core-delayload-l1-1-1.dll
api-ms-win-core-errorhandling-l1-1-1.dll
api-ms-win-core-file-l1-2-0.dll
api-ms-win-core-handle-l1-1-0.dll
api-ms-win-core-heap-l1-2-0.dll
api-ms-win-core-interlocked-l1-2-0.dll
api-ms-win-core-kernel32-legacy-l1-1-0.dll
api-ms-win-core-libraryloader-l1-1-1.dll
api-ms-win-core-memory-l1-1-1.dll
api-ms-win-core-processthreads-l1-1-1.dll
api-ms-win-core-profile-l1-1-0.dll
api-ms-win-core-registry-l1-1-0.dll
api-ms-win-core-string-l1-1-0.dll
api-ms-win-core-string-l2-1-0.dll
api-ms-win-core-string-obsolete-l1-1-0.dll
api-ms-win-core-synch-l1-2-0.dll
api-ms-win-core-sysinfo-l1-2-0.dll
api-ms-win-core-threadpool-legacy-l1-1-0.dll
cryptbase.dll
kernel32.dll
msvcrt.dll
mswsock.dll
ole32.dll
ws2_32.dll
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