The Internet is an integral part of modern life, and most people don't even think about how it works. However, your computer needs specific instructions from a program to allow your computer to connect to the Internet. The Remote Access Connection Manager handles this process.
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About Remote Access Connection Manager
The Remote Access Connection Manager service functions in Windows Server 2003 and 2008. When you click "Connect" in the Control Panel to connect your computer to the Internet or another network, Remote Access Connection Manager fires up, routes the connection and handles the details necessary to establish the connection. The service stops when no connection requests exist.
In Windows Server 2012, these functions are handled by the Remote Desktop Connection Manager.