You can use either a local account for the OS where ColdFusion is running, or a domain account if the OS is connected to a domain. In your case, you can simply create a local user on your Windows 7 operating system and start the ColdFusion application service as that user. The user account will have access to the ColdFusion installation folder, as well as read access to the feed.
The whole idea is to start the ColdFusion service as a user with the minimum privileges necessary to process requests and prevent access to other resources in case of data breach or remote code execution (for example, someone uses the download form and manages to get their own CF- the code to run on your server, it is not very, but it can be somewhat limited by starting the CF service under a user account with limited access).
As already mentioned, if CF needs access to other network resources, the user account must also be granted access to these resources (either using a domain account or with a local account with the same username and password for the remote system).
Justin scott
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