Reflection Desktop (including Pro, for IBM, or for UNIX and OpenVMS) 16.0 or higher
InfoConnect Desktop (including Pro, Unisys, and Airlines) 16.0 or higher
The "Trusted Locations" feature is intended to protect the users from the possibility of accidentally opening a document that contains malicious code. By default, trusted locations beyond a computer's local storage are disallowed because the user is less likely to be aware of whether files might be malicious or not if they are not stored on the local computer's hard drive. Documents not stored locally, and accessible to anyone with network access, could potentially be tampered with and can be an easier target for virus' or malware to exploit. Typically only folders on your local hard drive should be considered trusted locations, and should be protected by your Windows account with a strong password.
Changing Trusted Locations settings can greatly reduce or increase the security of your computer, its data, data on your organization's network, and other computers on that network. Consult with your system administrator, or carefully consider the risks (such as security permissions of the remote share), before making changes to Trusted Locations settings. Unless there is certainty that the remote documents are safe to open, it is recommended to leave the "Allow trusted locations on my network" option un-selected.