Application Layer Gateway Service - Windows 11 Service
Provides support for 3rd party protocol plug-ins for Internet Connection Sharing.
This service also exists in Windows 10, 7, 8, Vista and XP.
Startup Type
| Windows 11 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 21H2 | Manual | Manual | Manual | Manual |
| 22H2 | Manual | Manual | Manual | Manual |
| 23H2 | Manual | Manual | Manual | Manual |
| 24H2 | Manual | Manual | Manual | Manual |
Default Properties
| Display name: | Application Layer Gateway Service |
| Service name: | ALG |
| Type: | own |
| Path: | %WinDir%\System32\alg.exe |
| Error control: | normal |
| Object: | NT AUTHORITY\LocalService |
| Privileges: |
|
Default Behavior
The Application Layer Gateway Service is running as NT AUTHORITY\LocalService in its own process of alg.exe. It doesn't share its process with other services. If Application Layer Gateway Service fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the ALG service has failed to start.
Restore Default Startup Type for Application Layer Gateway Service
Automated Restore
1. Select your Windows 11 edition and release, and then click on the Download button below.
2. Save the RestoreApplicationLayerGatewayServiceWindows11.bat file to any folder on a local drive such as SSD or a hard disk.
3. Right-click the downloaded batch file and select Properties.
4. Check the Unblock checkbox and click OK.
5. Right-click the batch file again and select Run as administrator.
6. Restart the computer to save changes.
Note. Make sure that the alg.exe file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 11 installation media.