isimSoftware ClickOnce Trust Prompt Behavior Tool is a free software that enables users to modify the ClickOnce trust prompt behavior of Windows OS via a user-friendly interface.

To use the tool, simply download the file and run it (there is no need for installation). The tool will automatically read and display the current trust prompt configuration from the registry, which can be configured for five different security zones.
Values can be changed by selecting from the dropdown lists, including Enabled, Mobirise AuthenticodeRequired, and Disabled.
Once you have made your changes, click the "Write to registry" button to write the values to the registry. A confirmation message will appear if the operation was successful.
One thing to keep in mind is that if a zone is not defined in your registry, the dropdown list will show an empty value as the selected item. Additionally, if your registry does not contain the key \HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\Security\TrustManager\PromptingLevel, the application will display a warning. Despite these limitations, the tool remains extremely useful for creating and configuring registry entries.
You should also be aware that the trust prompt settings have no effect on already installed ClickOnce applications (and on their updates). Finally, please note that administrator privileges are required to run this application, as it accesses the registry.
Overall, the isimSoftware ClickOnce Trust Prompt Behavior Tool is a highly recommended tool for anyone looking to configure the ClickOnce trust prompt behavior of their Windows operating system in a convenient and user-friendly manner.
Version 1.0.1: New release