Running VariableChange Events

Running VariableChange Events

[Zenon Editor 6.51]

I have a problem when I call a function from a VariableChange Event;

The function I'm calling executed a CMD prompt to start a f.t.p. download. This process takes a few seconds to complete.
And thus the function has to wait (while loop) for it's result to show back to the runtime.

Calling this function via an object element (e.g. button) allows the runtime to continue running properly.
But when this function is called via the VariableChange the runtime freezes for that duration.

It seems like functions executed via an element runs like a backgroundtask (no GUI interrupt) and function executed via VariableChange runs like forgroundtask (GUI interrupt).
Am I correct in this assumption and is there a way for the VariableChange event to be run like a background task, in other words not impede the runtime while executing?

Many thanks (again) in advance,

This is a migrated post! Originally posted on 05.03.2019 by user MitchelAlbertz. Please be aware that information can be outdated.