I am very sorry for late responses.
Thanks for feedback.
I heard you can add dialog boxes using COM object
such as SeraphyScriptDialog
That functions are exactly what I have searched for for years.
Many thanks for that link.
I have never found something like that.
Unfortunately it seams some parts are hard coded in japanisch language ( see browse folder button and the path delimiter Y )
Also since I have to register the com object it is not fully portable. But I guess that de-/registering can be done by a script too.
Only it is not that nifty to share script with others if they have to register a dll first. Also they need admin rights.
And I have not found any help in english language till now.
I have to experiment a bit with that.
Thank you much!