For users who require additional control of security, they can restrict the use of Messaging Gateway by creating a separate user on Windows.
The Messaging Gateway installs as a Windows Service, and so logs onto the computer differently. By default, it logs on using the LocalSystem account, which gives it full access to the OS. As a security precaution, its recommended that each application execute in its own security context. This article details the steps required for this change.
This will restrict the use of Messaging Gateway to its installation directory.