The .NET Framework options control settings and CLR version used by .NET actions.
Default .NET Framework Version
Specifies the default .NET Framework version for new .NET actions added to your build. This is import for .NET SDK, and .NET Client Tool actions as it specifies which version to use tools from.
In addition this option specifies the
Allow reloading of .NET custom action assemblies
Checking this option allows FinalBuilder to reload assemblies required by custom action implemented in .NET. Reloading will take place automatically when an action package is saved in ActionStudio, or from the Package Manager dialog.
Unload custom action assemblies whenever the project is idle
Checking this option means that FinalBuilder will unload custom action assemblies when FinalBuilder is idle. For example, after a build have completed or when the action properties dialog is closed. This allows for easier debugging of custom actions being built using Visual Studio and Action Studio as FinalBuilder only holds the binary while it needs to.