Read variables set by assignment

[dozminkowski]

I started another thread, because this is one is about getting the value of variable:

Set installation variable and create it if it does not exist

Continuing the discussion from Read variables set by assignment: Correct me, if my reasoning process is wrong. InstallationNode creates a section of code in script file, when the file is created or changed. My intention is to create a URCap, where I can set up some configuration options. These options, however, will not be updated, until I change the program and click “Save” icon. How would I achieve the desired effect, i.e. user changes option in InstallationNode and runs the program without …

I want to get access to Installation variable, which will exist, when no program is running, or I will create it if it does not exist yet. Doing it in ScriptWriter does not have effect, if program is not touched (created or modified).