What Is the Alg.exe Windows Process?


Quick Answer

The Application Layer Gateway service executable, or alg.exe, is a generic Windows background process. It manages Internet Connection Sharing protocol connections that third party applications use for online communication, and it is also used by Windows Firewall.

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Full Answer

The alg.exe process manages connections that third party applications, such as a FTP or instant messaging client, use to communicate over the Internet. It does this by supporting third-party plugins that allow network protocols, such as FTP, to work with the Windows Firewall. The way the alg.exe process functions can be compared to a proxy server in the way it sits between the third party software and an online resource, facilitating the exchange of data.

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