Execute Webutil File Tranfer asynchron or in the background

Hello,

I am trying to copy a Folder with WebUtil.

to achive this i am using the functions to create a folder on the client and the functions to transfer files, since i didn´t find any functionality to copy a whole folder.

But since the whole process would need to be able to copy mutliple GB of pdf files it is rather slow in terms of performance (this could take up to multiple hours).
Since i don´t want to block the application for multiple hours i thought of executing the whole mask, in which webutil is integrated, in some kind of asynchronous behavior, or just let it execute in the background.